Vulcan CHEF-102E Electric Combi Oven User Manual

DOCUMENTATION

MAINTENANCE MANUAL

Ed: 10/2025

3-E490099EM / F49615

CHEF’SCOMBI

Page 3 / 76

3VE490099EM – 10/25

Table of contents

1. THE ESSENTIALS ....................................................................................................................................................... 5

1.1 REPLACING ELECTRONIC BOARDS .................................................................................................................................. 5

1.2 REPLACING THE HUMIDITY SENSOR................................................................................................................................ 6

1.3 REPLACING THE FOOD CORE TEMPERATURE PROBE .................................................................................................. 7

1.4 REPLACING THE TEMPERATURE PROBE OF ELECTRIC STEAM GENERATOR ........................................................... 7

1.5 REPLACING THE TEMPERATURE PROBE OF GAS STEAM GENERATOR ..................................................................... 8

1.6 REPLACING THE AMBIANT TEMPERATURE PROBE ........................................................................................................ 8

2. SPECIFIC TOOLS ........................................................................................................................................................ 9

3. SETTINGS .................................................................................................................................................................. 10

3.1 PIN CODES ......................................................................................................................................................................... 10

3.2 SOFTWARE INITIALIZATION ............................................................................................................................................. 10

3.3 SETTING THE SOFTWARE LANGUAGE ........................................................................................................................... 10

3.4 WATER TREATMENT CAPACITY ...................................................................................................................................... 11

3.5 CHECKING SOFTWARE VERSION.................................................................................................................................... 11

3.6 UPDATING THE SOFTWARE ............................................................................................................................................. 11

3.7 PROBES CALIBRATION ..................................................................................................................................................... 13

3.8 PARAMETERS SCREEN .................................................................................................................................................... 14

4. PREVENTIVE MAINTENANCE.................................................................................................................................. 16

4.1 LIST OF ACTIONS .............................................................................................................................................................. 16

4.2 SETTING MAINTENANCE INTERVENTION FREQUENCY, DAILY USAGE RATE ........................................................... 18

5. TROUBLESHOOTING ............................................................................................................................................... 20

5.1 TROUBLESHOOTING METHOD ........................................................................................................................................ 20

5.2 ERRORS MESSAGES ........................................................................................................................................................ 20

5.3 MAINTENANCE SCREENS ................................................................................................................................................ 29

5.4 COMMUNICATIONS LEDS ................................................................................................................................................. 32

5.5 OTHER SYMPTOMS ........................................................................................................................................................... 36

5.6 FLOWCHART ...................................................................................................................................................................... 38

5.7 RESET ................................................................................................................................................................................. 42

6. ELECTRIC DIAGRAMS ............................................................................................................................................. 44

6.1 DIAGRAMS .......................................................................................................................................................................... 44

6.2 6 AND 10 LEVEL CAVITY VENTILATION ........................................................................................................................... 50

6.3 GREASE COLLECTION OPTION ....................................................................................................................................... 51

6.4 PARTS LIST ........................................................................................................................................................................ 52

7. HYDRAULIC DIAGRAM ............................................................................................................................................. 54

7.1 6 AND 10 LEVEL OVENS .................................................................................................................................................... 54

8. GAS DIAGRAM .......................................................................................................................................................... 56

8.1 6 AND 10 LEVEL OVENS .................................................................................................................................................... 56

9. ACCESS TO COMPONENTS .................................................................................................................................... 57

9.1 LOCATION OF TECHNICAL COMPONENTS ..................................................................................................................... 57

9.2 ACCESS TO COMPONENTS ............................................................................................................................................. 57

10. COMPONENTS ...................................................................................................................................................... 60

10.1 ELECTRONIC BOARDS ...................................................................................................................................................... 60

10.2 ELECTRIC BOARDS ........................................................................................................................................................... 64

10.3 OTHER COMPONENTS ...................................................................................................................................................... 65

11. RECOMMENDED AND EMERGENCY SPARE PARTS ....................................................................................... 67

12. COMBUSTION GAS ANALYSIS PROCEDURE ................................................................................................... 69

13. CONTROL OF THE ELECTRODES (GAS BURNER)........................................................................................... 71

14. CHANGING THE EQUIPMENT FROM ONE GAS TO ANOTHER ....................................................................... 72

14.1 GAS FLOW RATES AND POWERS.................................................................................................................................... 72

CHEF’SCOMBI

Page 4 / 76

3VE490099EM – 10/25

14.2 CHART OF GAS INJECTORS ............................................................................................................................................. 72

14.3 CHANGEOVER FROM ONE GAS TO ANOTHER: ............................................................................................................. 72

14.4 CHANGING/ADJUSTING GAS VALVE ............................................................................................................................... 74

15. CONVERSION TABLES ........................................................................................................................................ 75

15.1 PT100 PROBE ..................................................................................................................................................................... 75

15.2 CELSIUS / FAHRENHEIT TEMPERATURE ........................................................................................................................ 76

15.3 WATER HARDNESS ........................................................................................................................................................... 76

15.4 PRESSURE ......................................................................................................................................................................... 76

1 - THE ESSENTIALS

CHEF’SCOMBI

Page 5 / 76

3VE490099EM – 10/25

1. THE ESSENTIALS

1.1 REPLACING ELECTRONIC BOARDS

When replacing the electronic boards (Aag gas board, Ahu humidity board, Ar Main board or Ac encoder board), no additional updates or settings are

required. Simply follow these steps:

» Remove the faulty board.

» Install new board in its place.

» Make necessary connections.

 On start-up, the system will automatically set up the new board

However, to replace the Ai interface board, it is essential to recover the SD card from the faulty board. This makes it easier to set parameters and

recover customer settings and data. Follow these steps:

» Remove faulty interface board.

» Remove SD card from the interface board.

» Insert this SD card into interface board.

» Install new interface board.

» Make necessary connections.

 When it starts up, the system will ask you to confirm that the parameters have been copied and will

automatically configure the board.

Boards

Faulty board

New board

Application

Main board - Ar

No settings - Automatic recognition between boards

Humidity board - Ahu

No settings - Automatic recognition between boards

Gas board - Aag

No settings - Automatic recognition between boards

Encoder board - Ac

No settings - Automatic recognition between boards

Interface board - Ai

Recover the SD card and insert it on the new

Interface board.

Copy settings and customer data if the SD card

present on the faulty board is recovered.

✓

1 - THE ESSENTIALS

CHEF’SCOMBI

Page 6 / 76

3VE490099EM – 10/25

1.1.1 INTERFACE BOARD SETTING

This step is crucial if the interface board on your Chef'sCombi oven is to be replaced. There are two methods available for carrying out this operation:

you can either copy the existing configuration using the SD card from the faulty interface board, or you can configure the oven manually. Be sure to

follow the instructions carefully to ensure correct configuration.

It is in your interest to recover the SD card, as all customer data, history, logs, settings and oven

configuration will be preserved.

SD card: Mini 4GB / FAT32 formatted

Replace the SD card on the faulty interface board.

» When replacing interface board, make sure you recover the SD card present on it.

» Insert this SD card into the new interface board.

» Start oven.

 Important, When the oven starts up, the system will detect that there is no configuration and will offer to copy the

configuration.

» If you accept to copy the configuration, the oven will be configured with the previously saved settings.

» If you refuse, or if the SD card is corrupted, you will have to configure the oven manually by following the instructions

(►Troubleshooting - Reset).

Insert a blank SD card into the Interface board

» If you do not have the original SD card or if it is damaged, you can use the blank SD card present on the new Interface

(check that it is present).

» Start oven.

 When it starts up, the system will detect that there is no configuration and will ask you to configure the oven.

» Configure the oven manually by following the instructions (►Troubleshooting - Reset).

1.2 REPLACING THE HUMIDITY SENSOR

Prepare your intervention:

✓ Remove the left-hand oven cover (►Access to components)

✓ Tools: 22" spanner

Disconnecting the probe

» Disconnect the probe at the Black terminal block by pressing on

the terminal block tab

Removing the probe

» Unscrew the probe using the spanner

» Remove the probe

Fitting the new probe

» Reposition and screw the probe fully into its housing, taking care

not to twist or damage the cable

» Connect the probe to the black terminal block, taking care to

follow the instructions below.

When connecting the new probe to the humidity board, make sure that :

» The cable is as straight as possible (no loops)

» The cable is not twisted

» The cable has passed through the cable clip provided.

» The cable is routed through the highest grommet on the board to avoid twisting the cable

✓

Cable clip

Sheet metal

pass-through

1 - THE ESSENTIALS

CHEF’SCOMBI

Page 7 / 76

3VE490099EM – 10/25

1.3 REPLACING THE FOOD CORE TEMPERATURE PROBE

Prepare your intervention:

✓ Remove the right-hand ladder from the cooking chamber

(►Access to components)

✓ Tools: Wrenches, screwdriver

Disconnecting the probe

» Unscrew the 2 fixing screws (8 wrench) from the core probe

pass-through and remove the 2 screws.

» Gently pull on the lead wire to access and release the

connector.

» Disconnect the 2 wires from the connector.

» Remove the probe and its gasket.

Mounting the new probe

» Connect the probe to the connector and insert the connector

into its housing.

» Position the gasket and attach the probe pass-through to the

cooking cavity.

Check / Test

» Perform the probe calibration procedure.

1.4 REPLACING THE TEMPERATURE PROBE OF ELECTRIC STEAM GENERATOR

Locate the probe wires on the terminal block according to color. Red wire: analog, White wire:

numeric.

It is imperative to systematically change the probe seals each time the probe is serviced

(replacement or inspection).

It is imperative to systematically change the immersion element seal when servicing the

immersion element.

Prepare your intervention:

✓ Remove the left-hand oven panel (►Access to components -

Left-hand side panel)

✓ Drain the steam generator (►Troubleshooting - Maintenance

screens - Hydraulics diagram)

✓ Tools: Wrenches, screwdriver

Probe disconnection

» Disconnect the wires from the terminal block on the Main board.

Removing the immersion element

» Unscrew the 3 flange nuts on the immersion heater fitted with

the temperature probe.

» Remove the immersion element.

Removing the probe

» Unscrew and remove the clamp holding the probe to the

immersion element.

» Unscrew the probe and remove it.

Mounting the new probe

» Position the new probe on the immersion element according to

the instructions.

• Insert the cable gland and the two seals on the

temperature probe.

• Insert the temperature probe into the immersion element

housing, leaving it protruding by 0.4 inch, then tighten

the cable gland.

• Secure the probe to the top bar with a metal Serflex

clamp at 0.2 inch from the end of the probe.

Mounting the immersion element

» Insert the immersion element into the steam generator not

forgetting to change the gasket.

Check / Test

» Perform the probe calibration procedure.

Connector

gasket

Joints

Seals

0.2"

0.4"

Seal immersion element

Collar

1 - THE ESSENTIALS

CHEF’SCOMBI

Page 8 / 76

3VE490099EM – 10/25

1.5 REPLACING THE TEMPERATURE PROBE OF GAS STEAM GENERATOR

Locate the probe wires on the terminal block according to color. Red wire: analog, White wire:

numeric.

It is imperative to systematically change the probe seals each time the probe is serviced

(replacement or inspection).

Prepare your intervention:

✓ Remove the left-hand oven panel (►Access to components -

Left-hand side panel)

✓ Drain the steam generator (►Troubleshooting - Maintenance

screens - Hydraulics diagram)

✓ Tools: Wrenches, screwdriver

Probe disconnection

» Disconnect the wires from the terminal block on the Main board.

Removing the probe

» Unscrew the collar holding the probe to the gas steam generator.

» Remove the probe and the two seals and replace them.

Mounting the new probe

» Position the new probe in the steam generator according to the

instructions

• Insert the 2 seals on the temperature probe as far as

they will go.

• Insert the probe into the steam generator and tighten

with a screw clamp.

Check / Test

» Perform the probe calibration procedure.

1.6 REPLACING THE AMBIANT TEMPERATURE PROBE

It is imperative to systematically change the probe seal each time the probe is serviced

(replacement or inspection).

Prepare your intervention:

✓ Remove the left-hand oven panel (►Access to components -

Left-hand side panel)

✓ Remove the left-hand runner from the oven (►Access to

components - Runners)

✓ Remove the ventilation duct (►Access to components -

Ventilation duct)

✓ Tools: Wrenches, screwdriver

Probe disconnection

» Disconnect the wires from the terminal block on the Main board.

Removing the probe

» In the technical compartment, unscrew the threaded hexagonal

spacer (14 mm spanner) used to secure the probe.

» Remove the probe and its seal from the inside of the oven.

Mounting the new probe

» Lubricate and assemble the O-ring with the ambient probe

» Pass the wires of the new probe through form the inside of the

oven.

» Position and secure the new probe.

» Insert and press the probe against the inside of the cooking

cavity and secure it with the threaded hexagonal spacer.

» Reconnect the probe wires to the terminal block on the Main

board

Check / Test

» Perform the probe calibration procedure.

Collar

Joints

seals

Seal

2 - SPECIFIC TOOLS

CHEF’SCOMBI

Page 9 / 76

3VE490099EM – 10/25

2. SPECIFIC TOOLS

Chapter

Tools

Characteristics

Application

Common

Standard hand tool kit

Cutting tools

Retractable blade knife

Set of metric wrenches (flat, pipe, ratchet

with sockets, Allen Hex Key)

From 5.5 to 22 mm

Set of screwdrivers (flat, Phillips)

Philips.

Pliers (multi-socket, flat, cutting, stripping)

Measuring tools (tape measure, calliper,

level)

Classic tubular level 40cm

Wrench

PPE

Standard

Personal protection for technicians.

Water

Water control kit

Allows control of Hardness, Cl-, PH,

Conductivity and Cl2

Check the characteristics of the water.

Water pressure gauge

Measuring range 0-10 bar

Check water supply pressure.

Drain

Container

3 litres minimum

Fill the drain box.

Electric

Verification of absence of voltage (VAT)

Max 690V a.c.

Check that there is no voltage.

Multimeter-Voltmeter

Max 690V a.c.

Various checks on electrical and electronic

components.

Draw knife

Typ : "JOKARI" No 50 and No 28

Pull out the power cable.

Torque spanner

Type: J208-50 + 13mm 3/8" square

socket

Motor mounting: Torque 14N/m.

Gas

Flue gas analyser

Type: "Testo 300 professionnel or

equivalent

Check the level of CO emitted when the

oven is operating.

Water column or electronic pressure gauge

Type:Testo 510 or equivalent

Check the gas pressure.

Spray or Electronic Gas Leak Detector

Type: 1000 Bubbles spray

Check gas connection for leaks.

Thickness gauges

Dimensions: 6mm and 3.5mm

Position the ignition and detection

electrodes.

Ratchet spanner

Size 8mm M5 screw

Remove the gas exchanger.

Claw key

Opening 1/2-3/4

Dismantle the gas hoses and connections if

the grease collection option is chosen.

Software

USB flash drive

USB2 type: Maximum capacity = 32

GB - FAT32 formatted

Updating software version, copying oven

configuration data and customer data

(protocols, images, etc.).

Mechanical

Hub puller

Type: "Facom U35.L or similar pulling

tool.

Remove the convection fan to service the

motor.

3 - SETTINGS

CHEF’SCOMBI

Page 10 / 76

3VE490099EM – 10/25

3. SETTINGS

3.1 PIN CODES

The access PIN codes are essential for entering the settings menu reserved for the installer, user (after setting by the Chef) and maintenance. They

ensure the security and protection of the sensitive settings of your Chef'sCombi oven. Please keep these codes in a safe place and only share them

with authorised personnel.

Code No

Description

Level

Remark

0000

Default user code

Accessible in the settings / Can be changed by

the user.

CHEF

Emergency code for Chef

If the password set by the Chef (user) is forgotten

(after changing 0000).

INST

Installers

Access to installer parameters

SERV

Network Service Technicians

Access to 1st level maintenance parameters

3.2 SOFTWARE INITIALIZATION

» Switch on the display by holding down the encoder button.

» Before the power-on bar graph is displayed, press the « Settings » button.

 The PIN code identification pop-up appears.

» Enter PIN code (level 5 or 7) to access “Installer” parameters (►Settings - Codes PIN).

» Confirm by pressing the « ✓ » icon. If the code is correct, access to the screen is authorized; otherwise, return to

entering the PIN code

» Press on the parameter values to modify if necessary.

 The selection drop-down menu appears.

- Select the desired value.

» Confirm by pressing the « ✓ » icon.

3.3 SETTING THE SOFTWARE LANGUAGE

» Switch on the display by holding down the encoder button until the power-on bar graph is displayed.

» Wait for the "Home" menu to appear.

» Press the "Languages" button.

 The language selection drop-down menu appears.

» Select the desired language (En: by example).

3 - SETTINGS

CHEF’SCOMBI

Page 11 / 76

3VE490099EM – 10/25

3.4 WATER TREATMENT CAPACITY

This counter is only applicable when the oven is supplied by two separate water networks.

» From the "Home" menu screen, select the "Settings" button.

 The screen displays the "Parameters" menu with the "User" tab selected.

» Select "Cooking and Installation choices" button.

 The screen displays the "Cooking and Installation" settings.

» Enter the capacity of the water treatment system in litres. Adjustable from 0 to 99999L. The value defaults to 0 if

there is no dedicated water treatment for the oven.

- Select the area of the value to be modified.

- Set the value using the encoder knob or the keypad.

» Confirm by pressing "✓ " icon.

» Reset the counter if necessary, by pressing the "Reset" button.

» Confirm by pressing "✓ " icon.

3.5 CHECKING SOFTWARE VERSION

The software version is visible in the "User" tab of the "Settings" screen, below the device serial number.

» From the "Home" menu screen, select the "Parameters" button.

 The screen displays the "Parameters" menu with the "User" tab selected.

3.6 UPDATING THE SOFTWARE

A regular software update ensures that the oven interface has the latest developments and improvements for use by the customer and/or the

technician. The technician is alerted as soon as a new update is available via the “Vulcanequipment.com/resource-center” website software and/or the

"software info" distribution.

Before starting the update, check that the software is in the local language and change if necessary.

Warning:

Do not disconnect the power supply to the device while the software is being loaded.

Do not remove the UBS key while the software is being loaded.

The oven will be unavailable for the duration of this operation.

USB key

For this configuration operation, you will need a blank FastPad USB key or a blank USB key with the following specifications:

- Maximum capacity = 32 Gb

- Formatted in FAT32 (default allocation unit size = 4096 bytes) or formatted in FAT (default allocation unit size = 32 Kilobytes).

3 - SETTINGS

CHEF’SCOMBI

Page 12 / 76

3VE490099EM – 10/25

Software update file

Download the software update file "CVxxx-SW.zip" from our Vulcan website maintenance site.

Unzip the downloaded file.

Copy the executable file to the blank USB key and run it: fastpad3_imxX_VX.X.XX.upd

The files will be automatically created on the USB key. The USB key must contain only :

Procedure

Step 1

Switch on the device.

Wait for welcome menu to appear. If necessary, skip the pre-heating.

Step 2

Insert USB key with the new version of Software into the USB socket (next to the spray

hose location).

The USB socket has a protective cover.

Lift the cover upwards to insert the USB key.

Caution !

Verify flap has closed as soon as USB socket is no longer in use.

Step 3

When the USB key is connected, the "UPDATE" request window will appear.

If no window appears, this means software version is identical between the USB

key and the device.

Step 4

Confirm the update by pressing the « ✓ » icon.

Step 5

Confirm the update by entering your PIN code (level 5 or 7) (►Settings - PIN Codes).

Software will start loading.

The device may restart once during the update.

Step 5

Do not remove the USB key until the welcome screen appears.

3 - SETTINGS

CHEF’SCOMBI

Page 13 / 76

3VE490099EM – 10/25

3.7 PROBES CALIBRATION

Calibration of the probes (core probe, steam generator probe and cavity probe) must be carried out

systematically each time these components are replaced.

The cavity probe, core probe and humidity sensor are calibrated during the ‘Steam generator calibration’ procedure, which takes approximately 12

minutes. If a measured value is inconsistent during the process, interrupt the check immediately by pressing the ‘Reject’ button. Then switch off the

oven and check the probe(s) concerned. Replace faulty components if necessary.

Prepare for your test:

✓ The oven door is closed.

✓ The left-hand trim panel is in place.

» From the "Home" menu screen, select the "Settings" button.

 The screen displays the "Parameters" menu with the "User" tab selected.

» Select the "Installer" tab.

 The PIN code identification pop-up appears.

» Enter the PIN code (level 5 ou 7) to access the "Installer" parameters. (►PIN Codes).

» Confirm by pressing the "✓ " icon. If the code is correct, access to the screen is authorised; if not, return to

entering the PIN code.

» Press the "Steam generator calibration" button

» Confirm by pressing the "✓ " icon.

 The " Steam generator calibration" screen appears.

» Start the test by pressing the "Start" button.

» Follow the actions shown on the oven display "step by step".

» When point 6 "Do you want to use these values for calibration?" is displayed, press "✓ " to confirm.

» When the calibration result is displayed, press the "End" icon to return to the previous screen.

3 - SETTINGS

CHEF’SCOMBI

Page 14 / 76

3VE490099EM – 10/25

3.8 PARAMETERS SCREEN

For security reasons, the "Installer" and "Service" tabs are password-protected. You can permanently adjust your device's factory settings by pressing

the value of the parameter you want to change or activate. Once settings have been made, the parameters are adjusted immediately.

3.8.1 ACCESSING THE SERVICE SETTINGS MENU

» On the "Home" menu screen, select the "Parameters" button.

 The screen displays "Parameters" menu with "User" tab selected.

» Select "Service" tab.

 The PIN code identification pop-up appears.

» Enter PIN code (level 7) to access "Service" parameters (►PIN Codes).

» Validate by pressing « ✓ ». icon. If the code is correct, access to the screen is authorised; otherwise, return to

entering the PIN code.

3.8.2 LIST OF PARAMETERS

➔

Oven serial number

➔

Oven settings

➔

Maintenance diagrams

➔

Errors

➔

Counters

➔

Descaling the steam generator

➔

Save maintenance history: Button active if a USB key is connected to the oven

3.8.3 TROUBLESHOOTING ACCESS

Service screens: Input status screen, Output status screens and Hydraulics screen.

(►Troubleshooting - Maintenance screens)

Error: Troubleshooting

The screen displays the error table, starting with the first number listed in the error table (►Errors messages). To scroll through the numbers, use the

encoder to scroll to the desired number.

Alternatively, you can click on the number field to bring up the keypad and enter the desired target number directly.

You can access this screen by selecting an error line in the error history (►Error: History). When browsing the history, click on the specific error to be

automatically redirected to this screen. This feature enables efficient incident management, providing quick access to specific error details.

Error : History

The Error History screen provides a detailed view of incidents that have occurred, presented in chronological order from most recent to oldest. This

feature enables users to follow and understand the evolution of problems encountered by the Chef'sCombi.

3 - SETTINGS

CHEF’SCOMBI

Page 15 / 76

3VE490099EM – 10/25

Error messages are recorded in the history for a set period of 6 months; ensuring reliable tracking of incidents over an extended period.

Counters

The counter screen lists all the counters, with a history for the main counters. Following values for main counters, you will find the following values:

- The total value since the oven was switched on.

- Values for the last 7 days (D, D-1, D-2, D-3... D-7).

- Values for the last 12 months (M, M-1, M-2, M-3... M-12).

Note: Some counters can only display the current day's value, with no history of previous days.

List of counters

Designation

Units

Total operating time

Seconds

Cooking time convection mode

Seconds

Cooking time steam mode

Seconds

Cooking time combi mode

Seconds

Total time in cooking cycle

Seconds

Total time in cleaning cycle

Seconds

Hard water consumption

Millilitre

Softened water consumption

Millilitre

Elec. energy consumption

0.1Wmin

Gas energy consumption

0.1Wmin

Water consumption since last reset

Litre

Remaining water capacity

Litre

Hours elapsed since last service

Hours

Remaining hours before service

Hours

Cooking seconds elapsed since last cleaning

Seconds

Cleaning status

Number of completed cooking cycles

Number of completed cleaning cycles

Number of completed descaling cycles

Total operating time

Seconds

Cooking time convection mode

Seconds

Cooking time steam mode

Seconds

Cooking time combi mode

Seconds

Total time in cooking cycle

Seconds

Total time in cleaning cycle

Seconds

Hard water consumption

Litre

Softened water consumption

Litre

Elec. energy consumption

KWh

Gas energy consumption

KWh

Elec. energy consumption last cycle

KWh

Gas energy consumption last cycle

KWh

Water consumption last cycle

Litre

Duration last cycle

Seconds

Elec. energy consumption per cycle

KWh

Gas energy consumption per cycle

KWh

Water consumption per cycle

Litre

Average duration per cycle

Seconds

Elec. energy consumption last hour

KWh

Gas energy consumption last hour

KWh

Water consumption last hour

Litre

Average duration last hour

Seconds

Elec. energy consumption per hour

KWh

Gas energy consumption per hour

KWh

Water consumption per hour

Litre

Average duration per hour

Seconds

Total cleaning tabs consumption

Total descaling sticks consumption

Designation

Units

S01 CAVITY LIGHT (MOS)

S02 DAMPER (MOS)

S03 GREASE PUMP (MOS)

S04 DESCALING PUMP (RELAY)

S05 CAVITY DRAIN PUMP (RELAY)

S06 STEAM GENERATOR DRAIN PUMP (RELAY)

S08 TECH FAN (RELAY)

S09 KP (RELAY)

S10 POWER HEAT 1 (RELAY)

S11 POWER HEAT 2 (RELAY)

S12 POWER HEAT G (RELAY)

S13 CLEAN PUMP (RELAY)

S15 SPRAY VALVE (RELAY)

S16 DESCALER DISSOLUTION VALVE (RELAY)

S18 CONDENSER VALVE (OPTO)

S19 COOLING VALVE (OPTO)

S20 STEAM GENERATOR FILLING VALVE (OPTO)

S22 FAN OPERATION (TRIAC)

S23 FAN DIRECTION (RELAY)

SR1 COOKING STATE (RELAY)

S01 CAVITY LIGHT (MOS)

Seconds

S02 DAMPER (MOS)

Seconds

S03 GREASE PUMP (MOS)

Seconds

S04 DESCALING PUMP (RELAY)

Seconds

S05 CAVITY DRAIN PUMP (RELAY)

Seconds

S06 STEAM GENERATOR DRAIN PUMP (RELAY)

Seconds

S08 TECH FAN (RELAY)

Seconds

S09 KP (RELAY)

Seconds

S10 POWER HEAT 1 (RELAY)

Seconds

S11 POWER HEAT 2 (RELAY)

Seconds

S12 POWER HEAT G (RELAY)

Seconds

S13 CLEAN PUMP (RELAY)

Seconds

S15 SPRAY VALVE (RELAY)

Seconds

S16 DESCALER DISSOLUTION VALVE (RELAY)

Seconds

S18 CONDENSER VALVE (OPTO)

Seconds

S19 COOLING VALVE (OPTO)

Seconds

S20 STEAM GENERATOR FILLING VALVE (OPTO)

Seconds

S22 FAN OPERATION (TRIAC)

Seconds

S23 FAN DIRECTION (RELAY)

Seconds

SR1 COOKING STATE (RELAY)

Seconds

Descaling

Descaling enables the oven and steam generator to be descaled by force. Pressing the button starts a descaling process at the maximum level for the

oven without the cleaning program. The number of sticks required is clearly indicated and varies according to the oven model. The descaling process

is similar to that used for a wash with descaling and is carried out automatically.

Save

The save function automatically exports all the oven's essential parameters and data to a USB stick, organising them in different files for more efficient

management. Each type of data is saved in a separate file, including connectivity logs, errors, counters, cooking parameters and appliance

configuration. These files are automatically filed in a specific folder, created on the USB key, guaranteeing a complete and organised backup of

maintenance data.

The function is accessible if a USB stick is plugged into the USB socket.

4 - PREVENTIVE MAINTENANCE

CHEF’SCOMBI

Page 16 / 76

3VE490099EM – 10/25

4. PREVENTIVE MAINTENANCE

To ensure that your equipment operates safely and reliably over the long term, we recommend that you have it checked and serviced by our qualified

personnel.

The customer is automatically notified of the need for preventive maintenance. The overhaul counter is determined according to the frequency of use

of the oven and the number of hours between each intervention. These values must be entered by the technician at the time of installation and

checked at each service.

4.1 LIST OF ACTIONS

WARNING : The appliance must be disconnected from its power supply during cleaning or

maintenance, and when replacing parts.

Subject

Recommendations (Every year or every 3000h)

General

Earthing

Check the continuity of the earthing system

Oven position

Levelling, loading sill height, adjust if necessary.

Fixing the oven

If the appliance is fixed, check that it is correctly fixed.

Facia / Screen

Control panel sealing

Check that the control panel is watertight.If there are any leaks, make it watertight

Screen electronics / Interface board

No traces of dirt or dust deposits on the components - Clean and seal the compartment. - Check

that the screen is securely fastened to the bracket, as this ensures that it is watertight.

Screen connections

No traces of oxidation on the USB / RJ45 plug connectors - Replace if necessary.

Encoder board

No signs of dripping or oxidation - Check that it is working properly.

Encoder button

Check that it is in good condition and securely fixed, with no excessive play or wear, etc. - Replace

if necessary.

USB compartment / Spray hose

USB compartment

Check the condition of the USB socket: no deformation, no oxidation, check the closing flap, good

general condition, closing spring working, compartment completely sealed - Replace if

necessary.

Spray hose

Check the condition of the spray hose: no blockages, no leaks - dismantle and clean - Check the

supply pipe: no leaks, no cracks in the pipe - Check the reel: secure and return spring in good

working order - Replace if necessary.

Technical compartment

Air vents / technical fan

Clean the inlets - Clean the fan blades

Power supply terminals

Check that there are no signs of overheating - Tighten the connections

Fuse holders (if any)

Check that there are no signs of overheating - Tighten the connections

Contactors

Check that there are no signs of overheating - Tighten the connections

Main board

Remove dust - Check that there is no oxidation on the output contacts - Check the condition of

the fuses (visual check of the status LEDs) - Check that the connector screws are tight and that

they are correctly connected.

Valve In

Check the general tightness - Check the seal - Clean - Using the maintenance table, operate and

check that there is no noise, depending on the model, check the operation of the associated

motor, noise, etc. - Replace if necessary.

Heater

Ventilation motor

Using the maintenance table, operate the motor and check that there are no abnormal noises -

Systematically replace the motor shaft seal - Check that the mechanical fasteners are tight -

Lubricate the motor shaft (high-temperature lubricant).

Resistors

Check the condition of the supply wiring, cables in good condition, no cracks in the insulation.

Heat-shrink tubing present and in good condition. - Repair or replace if necessary.

Intensity measurement (convection heat

180°C)

Measure the current on each phase of each heating element and check that there is no imbalance

between phases and no drift from one test to the next. - Replace the element if necessary.

Gas or electric steam generator

Steam generator body

Descale if necessary (remove at least one immersion heater for visual inspection) - Replace the

seal - Check that there are no traces of dripping at the hydraulic connections.

Immersion heaters

Dismantle only if leaking - Replace seal - Check condition of wiring and heat-shrink tubing -

Repair or replace if necessary.

Intensity measurement (100°C steam heater)

Measure the current on each phase of each heating element and check that there is no imbalance

between phases and no drift from one test to the next. - Replace the element if necessary.

Level probe

Dismantle and clean - Check that the connections (probe and earth) are tight and that the thread

is watertight.

Hydraulic

General waterproofing

Carry out a visual check.

Water inlet

Cleaning the filter.

Solenoid valves

Check that there is no indication of overheating in the coils (change of colour if necessary) -

Check operation using the maintenance menu, leave the solenoid valves operating and check

the various circuits, seals, tightness of connections, etc. - Re-seal or replace the hoses if

necessary, and the solenoid valves if necessary.

Cleaning / descaling circuit

Check the condition of the descaling box: that the descaling flap is working properly, and that the

grille is clean and in good condition - clean if necessary.

Check the condition of the pipework: connections, hoses, no leaks.

Check the pump: using the maintenance menu, turn it over and check that there are no abnormal

noises, no leaks, and that the electrical connections are free from gap or oxidation. Replace if

necessary.

Check that there are no foreign bodies in the tank.

4 - PREVENTIVE MAINTENANCE

CHEF’SCOMBI

Page 17 / 76

3VE490099EM – 10/25

Subject

Recommendations (Every year or every 3000h)

Hydraulic

Steam generator drain circuit

Check the condition of the pipework: connections, hoses, no leaks.

Check the pump: using the maintenance menu, turn it over and check that there are no abnormal

noises, no leaks, and that the electrical connections are free from gap or oxidation. Check for

leaks or replace the pump if necessary.

Clean box drain circuit

Check the condition of the pipework: connections, hoses, no leaks.

Check the pump: using the maintenance menu, turn it over and check that there are no abnormal

noises, no leaks, and that the electrical connections are free from gap or oxidation. Check for

leaks or replace the pump if necessary.

Cleaning pump

Lubricate the bottom bearing of the pump with WD40 type lubricant product.

Cavity

General condition

Check that there are no rust stains and that cleaning and descaling are effective.

Joint

Clean - Check general condition - Replace if necessary.

Core probe

Check the general condition (tip, cable) - Check that the bulkhead feed-through is tight and

watertight - Check that it is working properly by starting a firing and checking the temperature

change.

20-level oven ventilation duct

Check that the lower axle ring is present and that it functions correctly (pivoting; hooking in).

Sprinkler

From the maintenance menu, activate the wash pump and visually check the water flow - Clean

the nozzles and retighten if necessary.

Water injection tube

Internal cleaning - Descaling if necessary - Changing the seal if necessary - Mechanical

fastening.

Drain

Check that the grille is clean, tight and watertight. Change the seal if necessary.

Under-door trunking

Check the drain and flue for leaks and cleanliness - Re-seal if necessary.

Ladders

Check that there is no corrosion and that the fixings and rails are in good condition. - Repair if

necessary.

Door

Top and bottom hinges

Check general condition (wear, etc.); Lubricate and tighten if necessary.

Internal door

Condition and presence of the door stops (complete if necessary); Check that the springs are

correctly pivoted and effective (adjust if necessary).

Lighting

General operation - Condition of label (must be watertight) - Clean - Replace if necessary

Door closing mechanism

Check clearances and general tightness - Check the state of wear of friction parts - Readjust if

necessary.

Bottom door seal (20 levels only)

Clean and check general condition - Replace if necessary.

Gas ovens only

Gas connection

If the connection is made with a flexible hose, check its suitability for use (date, condition, etc.) -

Replace if necessary

Gas pressure

Check the "static" and "dynamic" pressures at the appliance inlet - Adjust if necessary.

Combustion

Refer to the installation manual to carry out this check.

Exchangers

Visually check the general condition and tightness of the flanges in relation to the technical

compartment - Check the fixing points.

Ignition control / Flame safety / Burner motor

speed

Carry out the checks suggested by the technical screen in the maintenance menu before any

dismantling - Observe the results and, if necessary, follow the appropriate procedure.

Tightness of the gas circuit

Using a product such as "Mille Bulles", check the tightness of the connections upstream of the

gas valves and downstream of each connection when the burner is operating.

Safety checks

Switch off the gas supply while the burner is operating - The burner must go into safety mode

Plastic fireplaces

Check their presence and condition and clean if necessary.

Gas valves

Check: tightening of electrical control retaining screws, condition of metal hoses, tightness of

connections, etc. - Readjust in accordance with the instructions in this manual - Replace if

necessary.

Burner motor

Check during operation that there are no abnormal noises - Replace if necessary.

Grease collection option

Grease pump

Check the general condition, in particular that there are no leaks or drips, and that the electrical

connections are in good condition: no overheating, no traces of oxidation, etc. Using the

maintenance menu, run the motor and check that there are no noises - Replace if necessary.

Circuit

Check the condition of the pipes: no leaks, no cracks, no brittleness, no deformation or

blockages. - Replace defective parts if necessary.

Valve

Check general condition: no excessive gap at the handle, tightness of connections. - Replace if

necessary.

Safety valve

Check that it is working: close the grease outlet valve and activate the pump, the valve will

discharge the liquid - If not, replace the valve.

Safety pressure switch

Check that it is working: close the grease outlet valve and activate the pump. The pump should

stop and an error message should appear on the display. If this is not the case, replace the

pressure switch.

4 - PREVENTIVE MAINTENANCE

CHEF’SCOMBI

Page 18 / 76

3VE490099EM – 10/25

4.2 SETTING MAINTENANCE INTERVENTION FREQUENCY, DAILY USAGE RATE

Access to the Installer parameters menu

» From the "Home" menu screen, select the "Settings" button.

 The screen displays the "Parameters" menu with the "User" tab selected.

» Select the "Installer" tab.

 The PIN code identification pop-up appears.

» Enter PIN code (level 5 or 7) to access the "Installer" (►Settings - PIN Codes).

» Confirm by pressing "✓ " icon. If the code is correct, access to the screen is authorised; if not, return to entering

the PIN code.

Frequency of maintenance work and rate of use per day

The frequency of maintenance interventions and the rate of use per day are calculated in the table below according to the information supplied by the

customer at the time of installation, such as the number of hours the appliance is used per day and the type of cooking performed.

It is the responsibility of the technician to check that these settings correspond to the actual use of the oven, and to modify them if necessary

(according to the table below):

Setting the installation parameters

(to be entered in the Installation parameters)

Type of use

(Customer information)

Hours of use / day

(Customer information)

Maintenance every

(in hours)

Hours per day*

(in hours)

NORMAL USE

(Restaurants, etc.)

LIGHT

< 7 h

2000

STANDARD

7-12 h

3000

INTENSIVE

12-17 h

3000

VERY INTENSIVE

17-24 h

3000

COOKING >428°F

and/or

COOKING FATTY

PRODUCTS

(e.g. chicken rotisserie)

STANDARD

< 7 h

3000

INTENSIVE

7-12 h

3000

VERY INTENSIVE

12-17 h

3000

17-24 h

* hours of use

Frequency of maintenance

Number of hours / day

» Press number of hours input box.

 The screen displays a keypad and the number entry field.

» Enter number of hours before the next maintenance (800h by default): Adjustable from 100 to 7000 hours. It's

essential that you plan to have your appliance serviced at least once a year.

- Select the area of the value to be modified.

- Set the value using the encoder knob or the keypad.

» Confirm by pressing "✓ " icon.

» Select box to enter number of hours of use per day.

4 - PREVENTIVE MAINTENANCE

CHEF’SCOMBI

Page 19 / 76

3VE490099EM – 10/25

 The screen displays a keypad and the number entry field.

» Enter average hours appliance is in use each day. NOTE: This can be adjusted from 0 to 24 hours.

- Select area of the value to be modified.

- Set value using the encoder knob or the keypad.

» Confirm by pressing "✓ " icon.

Resetting the counter

» Reset the counter

- Press the "Reset" button.

» Confirm by pressing "✓ " icon.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 20 / 76

3VE490099EM – 10/25

5. TROUBLESHOOTING

5.1 TROUBLESHOOTING METHOD

Before replacing components without being certain of the problem, it is important to use all the tools

supplied with the oven to target the real problem: error history, counters, error message and associated

solutions, test using the technical screens, check the status of the LEDS, etc…

1. Interview the customer:

o Collect as much information as possible from the user about the problems encountered (frequency, anomalies, blocking errors,

etc.).

2. Identify the problem:

o Check combi steamer is correctly supplied with electricity or gas, water and drain, depending on the type of model used.

o Visually inspect interior of the oven for signs of possible damage or obstructions.

o Check the indications potentially provided by the Chef'sCombi: the error history, counters, … may give indications of the type of

problem encountered, its frequency ….

o Write down the details of the problem encountered, for better understanding.

3. If an error message is displayed: Fault search with ERROR MESSAGE

o Follow instructions given in the error message.

o Refer to error table in this manual if necessary for further information on the specific error code encountered (►Troubleshooting -

Errors messages).

4. If no error message is displayed:

o Fault-finding via the maintenance screens

❖ Check different components via the maintenance screens of outlets, inlets and hydraulics in the maintenance

parameters of the oven interface (►Troubleshooting - Maintenance screens).

❖ Refer to this manual to understand their meaning.

❖ Write down any anomalies and proceed with troubleshooting.

o Fault-finding via communication LEDs

❖ Identify LEDs on the oven boards (►Troubleshooting - Communications LEDs).

❖ Refer to the LED guide to understand their meaning (►Troubleshooting - Communications LEDs).

❖ Proceed with troubleshooting.

o Fault-finding OTHER:

❖ Consult the manual to access available diagnostics (►Troubleshooting - Other symptoms).

❖ Follow the flow charts provided to diagnose the problem and identify the appropriate troubleshooting steps

(►Troubleshooting - Flow charts).

❖ Consult the electrical diagrams (►Electric diagrams).

5. Contact technical support if necessary:

o If the problem persists or if you are unable to solve the problem using the above steps, contact the manufacturer's technical

support. Please always direct service questions to combi.tech@vulcanequipment.com or (800) 814-2028, select prompt #2, then

#8.

o Give all the relevant information you have collected during diagnosis for effective assistance.

5.2 ERRORS MESSAGES

To facilitate the intervention, hang the Main board in the maintenance position (►Access to

components – Maintenance position of the Main board assembly).

Code

Title

Probable Causes

What to do?

E00

Cavity overheat greater than 626°F

Control contacts stuck.

POWER OFF: Using an ohmmeter, place the test probes on

the terminal clamping screws to check the resistance between

L and T for each pole of the Kr contactor(s). The value must be

equal to “OL”; if not, replace the faulty contactor(s).

Output S10 of the Main board permanently

activated.

POWER OFF: Using an ohmmeter, place the test probes on

the terminal clamping screws and check the continuity between

the “230Vac” terminal of connector J15 and the “S10” output of

connector J16 on the Main board.

If there is continuity, replace the Main board.

Output S11 of the Main board permanently

activated (gas ovens 20 levels only).

POWER OFF: Using an ohmmeter, place the test probes on

the terminal clamping screws and check the continuity between

the “230Vac” terminal of connector J15 and the “S11” output of

connector J16 on the Main board.

If there is continuity, replace the Main board.

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E01

Ambient probe cavity fault.

Open “Inlets Diagram” in the “Service” screen and check the temperature indicated by the ‘Ban’ ambient probe. If

the value is “-°F,” the sensor circuit is faulty (short-circuited or open). Check the following points:

Wire broken in probe or input connection "Ban"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Ban” probe from connector J2 on the Main board and measure

between the two white wires using an ohmmeter. (By example,

the température of the cavity is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the

measured value is “OL,” the circuit is open. Repair the

connection, or replace the sensor.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 21 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

Short circuit in the probe or probe input

connection "Ban"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Ban” probe from connector J2 on the Main board and measure

between the two white wires using an ohmmeter. (By example,

the temperature of the cavity is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the value

measured is less than 100 Ω, there is a short circuit. Repair the

connection, or replace the probe.

Main board electrical fault

POWER OFF: if the probe and its connection are working,

replace the Main board.

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E02

Ambient probe cavity fault.

Wire broken in probe or input connection "Baa"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Baa” probe from connector J2 on the Main board and measure

between the two white wires using an ohmmeter. (By example,

the température of the cavity is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the

measured value is “OL,” the circuit is open. Repair the

connection, or replace the probe.

Short circuit in the probe or probe input

connection "Baa"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Baa” probe from connector J2 on the Main board and measure

between the two white wires using an ohmmeter. (By example,

the temperature of the cavity is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the value

measured is less than 100 Ω, there is a short circuit. Repair the

connection, or replace the probe.

Main board electrical fault

POWER OFF: if the probe and its connection are working,

replace the Main board.

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E10

Steam generator scale.

Water hardness is incorrectly set in the installation

parameters

Measure the water hardness and adjust the hardness

parameter in the installation settings. Carry out descaling cycle

from the "Service" screen.

Defective water softener or water filter

Measure water hardness and check or have checked that the

water softener and the water filter are working properly. Carry

out descaling cycle from the "Service" screen.

Limescale has built up in the steam generator and

the recommended descaling cycles have not

been carried out.

Carry out descaling cycle from the "Service" screen.

E11

High level of steam generator scale.

Water hardness is incorrectly set in the installation

parameters

Measure the water hardness and adjust the hardness

parameter in the installation settings. Carry out descaling cycle

from the "Service" screen,

Defective water softener or water filter

Measure water hardness and check or have checked that the

water softener and the water filter are working properly. Carry

out descaling cycle from the "Service" screen,

Limescale has built up in the steam generator and

the recommended descaling cycles have not

been carried out.

Carry out descaling cycle from the "Service screen".

E12

Steam generator overheat greater than

266°F

The Steam generator is heating; however, the

water level is low: The water level controller is

faulty.

Check the functionality of the water level control "BnC" from

"Inlets diagram" in the "Service" screen:

=> If the control probe is immersed in water, BnC = 1

=> If the control probe is not in water, BnC = 0.

If not functioning, check the state (Presence of calcium; Mineral

fouling...).

Steam generator heats even though water level is

too low: Sensor connection short-circuited or

grounded.

Disconnect the connector J1 on the Main board and take a

reading between the terminals "BnC" and "EARTH" using an

ohmmeter; If there is a short circuit, the ohmmeter indicates a

value close to “0” Ω, then locate the fault and repair as required.

The Steam generator is heating; however the

water level is low: Input "BnC" at the Main board

is defective.

Replace the Main board

E13

Steam generator temperature probe fault

Open “Inlets diagram” in the “Maintenance” screen and check the temperature indicated by the "Bgn" steam

generator probe. If the value is “-°F”, the sensor circuit is faulty (short-circuited or open). Check the following points:

Wire broken in probe or input connection "Bgn"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

"Bgn" sensor from connector J2 on the Main board and

measure between the two white wires using an ohmmeter. (By

example, the température is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the

measured value is “OL,” the circuit is open. Repair the

connection, or replace the probe.

Short circuit in the probe or probe input

connection "Bgn"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Bgn” probe from connector J2 on the Main board and measure

between the two white wires using an ohmmeter. (By example,

the température is between 70°F and 80°F, the measured

value will be between 108 Ω and 110 Ω). If the value read is

less than 100 Ω, there is a short circuit. Repair the connection,

or replace the probe.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 22 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

Main board electrical fault

POWER OFF: If the probe and the connections are functioning,

replace the Main board.

E14

Steam generator temperature probe

fault.

Wire broken in probe or input connection "Bga"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Bga” sensor from connector J2 on the Main board and

measure between the two red wires using an ohmmeter. (By

example, the température is between 70°F and 80°F, the

measured value will be between 108 Ω and 110 Ω). If the

measured value is “OL,” the circuit is open. Repair the

connection, or replace the probe.

Short circuit in the probe or probe input

connection "Bga"

POWER OFF: check that the connector is properly inserted into

its socket and that each wire is connected to each terminal on

the connector. If the problem persists, disconnect the Pt100

“Bga” probe from connector J2 on the Main board and measure

between the two red wires using an ohmmeter. (By example,

the température is between 70°F and 80°F, the measured

value will be between 108 Ω and 110 Ω). If the value read is

less than 100 Ω, there is a short circuit. Repair the connection,

or replace the probe.

Main board electrical fault

POWER OFF: If the probe and the connections are functioning,

replace the Main board.

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E15

The level of water in the steam generator

has not been reached after 117 seconds.

Water supply closed

Check that the water supply in-line valves are open

Water pressure too low

Mesure the water pressure at the oven connection. When the

water supply to the oven is maximum, the pressure must be

greater than 1.5 bar.

The Steam generator is not being fed water: The

fuse "F1" of the Main board has blown (LED "800"

off (►LEDs identification))

Check the cause of blowing, and the state of condenser's

solenoids (Ycond.) and cooling's solenoid (Ycool). Make the

repear and change the fuse by a fuse of the same models.

The Steam generator is not being supplied water:

The output "S20" of the Main board is faulty.

Press the "Yboiler" button from "Hydraulics diagram" in the

"Service" screen, and measure the voltage between the output

"S20" of the Automate and terminal "Xb". If the voltage is less

than 230V, change the Main board.

Steam generator is not being supplied water:

Then steam generator fill solenoid valve is

defective.

WARNING: The ouput is controlled by a triac: a voltage at the

output can be measured even if the triac is not open.

The Steam generator is not being supplied water:

Then Steam generator fill solenoid valve is

defective.

Disconnect the water supply pipe from the steam generator at

the elbow and place it in a container. Press the “Yboiler” button

from “Hydraulics Diagram” in the ‘Service’ screen, and check

that water is coming out of the pipe. If no water is flowing, the

“Yboiler” steam generator fill solenoid valve is defective and

must be replaced.

Water flow rate too low.

Disconnect the water supply hose from the steam generator at

the elbow and place it in a container. Press the “Yboiler” button

from “Hydraulics Diagram” in the “Service” screen and let the

water run into the container for as long as the solenoid valve is

open (1 minute). The amount of water collected should be

approximately 1,3 gallons. If it is less than this, check the

condition of the filters and flow limiter in the solenoid valve

(clogging, etc.). Clean them or replace the solenoid valve.

E16

Steam generator drainage pump fault.

24/230Vac supply voltage input fault

With a voltmeter, check the supply voltage between input

24/230Vac of the Main board and terminal "Xb". This voltage

should be 230V (120V on ovens version "UL"). If not, find the

cause of the fault and repair as required.

Fuse F4 blown (LED "702" off (►LEDs

identification))

Find the cause of the blowing, check the state of the descaling

pump (Mdg) and the cavity drain pump (Mvm). Make repairs

and replace the fuse with the same model.

Fault with the Main board switch S06

Connect a voltmeter between the terminal S06 of the Main

board and terminal Xb. Activate relay output S06 from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, replace the Main board.

The drainage pump is not powered

Connect a voltmeter to the terminals of the Steam generator

drain pump (Mvg). Activate relay output S06 from "Outlets"

diagram in the "Service" screen. If the voltage reads zero when

the relay is operated, check the pump cabling and repair as

required.

Steam generator drainage pump defective or

blocked.

Activate relay output S06 from "Outlets" diagram in the

"Service" screen. If the pump does not function, visually check

its state: clean or swap out as required.

Steam generator water level control failure

Check the operation of the “BnC” water level control from the

“Inlets diagram” in the "Service" screen: if water is present, BnC

= 1; if the probe is out of the water, BnC = 0.

If this is not the case, check the condition of the probe

(limescale, dirt) and its electrical connection. If the probe is

working, replace the Main board.

E20

The level of water in the cleaning tank

has not been reached after 50 seconds.

Water supply closed

Open the water supply

Water pressure too low

Check the water pressure at the oven connection. During

maximum kitchen water use, the pressure must be greater than

1.5 bar.

Water flow rate too low.

Check the state of the filter and of the condenser flow limiting

solenoid valve (Fouling...). Clean if required. The water flow

rate should be approximately 5l/min.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 23 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

Fuse F1 blown ( LED "702" off (►LEDs

identification))

Find the cause of the blowing, check the state of the Ycond and

Yboiler solenoid valves. Carry out repairs and replace the fuse

with the same model.

Fault with the Main board output S18

Connect a voltmeter between the terminal S18 of the Main

board and terminal Xb. Activate relay output S18 from "Outlets

diagram" in the "Service" screen. If the voltage is zero when the

output is activated, replace the Main board. WARNING: The

output is controlled by a triac: a voltage can be read at the

output, even when the triac is not open.

The condenser solenoid valve (Yc) is not

powered.

Connect a voltmeter to the terminals of the condenser solenoid

valve (Ycond). Activate relay output S18 from "Outlets diagram"

in the "Service" screen. If the voltage reads zero when the

output is operated, check the solenoid valve cabling and repair

as required.

Condenser solenoid valve defective

Activate output S18 from "Outlets diagram" in the "Service

screen". If the solenoid valve does not function, then replace.

Cleaning box water level control failure

Check the operation of the “BnL” water level control from the

“Inlets diagram” in the "Service" screen: if water is present, BnL

= 1; if the probe is out of the water, BnL = 0.

If this is not the case, check the condition of the probe

(limescale, dirt) and its electrical connection. If the probe is

working, replace the Main board.

E21

Cleaning box drainage pump fault

24/230Vac supply voltage input fault

With a voltmeter, check the supply voltage between input

24/230Vac of the Main board and terminal "Xb". This voltage

should be 120V on ovens. If not, find the cause of the fault and

repair as required.

Fuse F4 blown (LED "702" off (►LEDs

identification))

Find the cause of blowing, check the state of the descaling

pump (Mdg) and the cavity drainage pump (Mvm). Repair by

replacing the fuse with the same model.

Fault with the Main board switch S05

Connect a voltmeter between the terminal S05 of the Main

board and terminal Xb. Activate relay output S05 from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, replace the Main board.

The drainage pump is not powered

Connect a voltmeter to the terminals of the cavity drain pump

(Mvm). Activate relay output S05 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero when the relay is

operated, check the pump cabling and repair as required.

Cleaning box drainage pump defective or blocked

Activate relay output S05 from "Outlets diagram" in the

"Service" screen. If the pump does not function, visually check

its state: clean or swap out as required.

Cleaning box water level control failure

Check the operation of the “BnL” water level control from the

“Inlets diagram” in the "Service" screen: if water is present, BnL

= 1; if the probe is out of the water, BnL = 0.

If this is not the case, check the condition of the probe

(limescale, dirt) and its electrical connection. If the probe is

working, replace the Main board.

E22

Descaling pump cartridge fault.

24/230Vac supply voltage input fault

With a voltmeter, check the supply voltage between input 24-

/230Vac of the Main board and terminal "Xb". This voltage should

be 120V. If not, find the cause of the fault and repair as required.

Fuse F4 blown (LED "702" off (►LEDs

identification))

Find the cause of blowing check the state of the Steam

generator drainage pump (Mvg) and the cavity drainage pump

(Mvm). Repair by replacing the fuse with the same model.

Fault with the Main board switch S04

Connect a voltmeter between the terminal S04 of the Main

board and terminal Xb. Activate relay output S05 from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, replace the Main board.

The descale pump is not powered

Connect a voltmeter to the terminals of the descaling pump

(Mdg). Activate relay output S04 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero when the relay is

operated, check the pump cabling and repair as required.

Descaling tank drainage pump defective or

blocked

Activate relay output S04 from "Outlets diagram" in the

"Service" screen. If the pump does not function, visually check

its state: clean or swap out as required.

Steam generator water level control failure

Check the operation of the “BnC” water level control from the

“Inlets diagram” in the "Service" screen: if water is present, BnC

= 1; if the probe is out of the water, BnC = 0.

If this is not the case, check the condition of the probe

(limescale, dirt) and its electrical connection. If the probe is

working, replace the Main board.

E23

Cleaning pump fault

230Vac supply voltage input fault

With a voltmeter, check the supply voltage between input 230Vac

of the Main board and terminal "Xb". This voltage should be

230V. If not, find the cause of the fault and repair as required.

Fuse F2 of the main board blown (LED "702" off

(►LEDs identification))

Find the cause of blowing, check the status of the cleaning

pump (Mpn) and the solenoid valves for the hand shower

(Yspray) and/or descaling box filling (Ydescal.). Carry out

repairs and replace the fuse with the same model.

Fault with the Main board switch S13

Connect a voltmeter between the terminal S13 of the Main

board and terminal Xb. Activate relay output S13 from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, replace the Main board.

The cleaning pump is not powered

Connect a voltmeter to the terminals of the cleaning pump

(Mpn). Activate relay output S13 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero when the relay is

operated, check the pump cabling and repair as required.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 24 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

Cleaning pump defective or blocked

Activate relay output S13 from "Outlets diagram" in the

"Service" screen. If the pump does not function, visually check

its state: clean or swap out as required.

Clean wash box water level control failure

Check the water level control function from "Inlets diagram" in

the "Service" screen: if the probe is in the water, the BnL = 1,

and if it is out of the water, the BnL = 0.

If this is not the case, check the condition of the probe (scale;

dirt) and its electrical connection. If the probe is functional,

replace the Main board.

Cleaning pump capacitor faulty or incorrectly

connected

Check cleaning pump capacitor connection (lugs well plugged

in and no traces of oxidation). Switch off the oven, disconnect

the capacitor and connect a multi-meter in its place to check

the capacity of the 6.3µf (+/-5%) capacitor. If the value is

incorrect, replace the capacitor.

E30

Unpricked Core probe or Failed Core

Probe.

Check fault on the "Inlets diagram"

Open "Inlets diagram" in the "Service" screen and check the

temperature being indicated by the food probe "Bsc". If the

value is "---" at all points, the common point of the probe (Bsc

com) is faulty (either short-circuited or open).

Wire broken in probe or input connection Bsc

Com

Disconnect the probe Pt100 from the Main board and take

readings using an ohmmeter between points Bsc com and

Bsc1, Bsc2 and Bsc3; If the circuit is broken, repair the

connection. If not, replace the probe.

Short circuit in the probe or probe input

connection Bsc Com

Disconnect the probe Pt100 from the Main board and take

readings using an ohmmeter between points Bsc com and

Bsc1, Bsc2 and Bsc3; If there is a short circuit, locate the fault

and repair as required. If not, replace the probe.

Main board electrical fault

If the probe and the connections are functioning, replace the

Main board.

The extension lead between the Main board and

the probe is faulty

Check the ohmic values of each PT100 probe: measure the

values between the common (yellow wire) and each of the

other wires, compare the values with the values ( sse chapter

PT100 Probe) . Carry out this operation on the probe side and

on the board side. If the values differ, replace the extension

lead between the probe and the Main board.

E31

Food probe degraded.

Check fault on the "Inlets diagram"

Open "Inlets diagram" in the "Service" screen and check the

temperature being indicated by the food probe "Bsc". If one of

the values is "---", this point of the probe (Bsc1 => Bsc3) is

faulty (either short-circuited or open).

Wire broken in probe or the input connections Bsc

1 to 3

Disconnect the probe Pt100 from the Main board and take

readings using an ohmmeter between points Bsc com and

Bsc1, Bsc2 and Bsc3; If one of the test points is broken, repair

the connection. If not, replace the probe.

Short circuit in the probe or one of the probe input

connections Bsc 1 to 3

Disconnect the probe Pt100 from the Main board and take

readings using an ohmmeter between points Bsc com and

Bsc1, Bsc2 and Bsc3; If one of the test points has short

circuited, repair the connection. If not, replace the probe.

Main board electrical fault

If the probe is functioning, replace the Main board.

The extension lead between the Main board and

the probe is faulty

Check the ohmic values of each PT100 probe: measure the

values between the common (yellow wire) and each of the

other wires, compare the values with the values (see chapter

PT100 Probe) . Carry out this operation on the probe side and

on the board side. If the values differ, replace the extension

lead between the probe and the Main board.

E32

Food probe not inserted.

Probe not inserted in food, incorrect

measurement values

Insert the food probe, taking care to follow the instructions of

pricking.

E34

USB Core Probe unpricked or out of

service.

The probe is detected at the USB port but

temperature is not being measured.

Open "Inlets diagram" in the "Service" screen and check the

temperature being indicated by the food probe "USB". If the

value is "---" at all points, the probe is defective. Replace the

probe.

E35

USB food probe degraded.

One or more of the measured temperatures are

out of range.

Open "Inlets diagram" in the "Service" screen and check the

temperature being indicated by the food probe "USB". If the

value is "---" at one of the measuring points, the probe is

defective. Replace the probe.

E40

Gas safety device active on "convection"

cavity burner.

Gas inlet valve closed, no gas or Incorrect gas

type

Make sure that the gas supply is on. Check that the type of gas

being supplied conforms with that shown on the appliance's

specification plate. Open the gas valve

No grounding on power supply

Check the grounding of the device using a megohmmeter.

Check or have someone check the continuity of the ground and

the grounding.

Gas pressure too low

Measure the gas pressure by measuring from input of the gas

valve "Pin" (►Changing/adjusting gas valve) at the appliance

connection when all appliances running off the same supply are

operating at maximum capacity. The gas pressure must be

within the allowed limits.

Gas board output AL12 defective

Connect a voltmeter between the terminal AL12 of the add-on

gas board (Aag) and terminal Xb. Activate relay output AL12

from "Outlets diagram" in the "Service" screen. If the voltage

reads zero when the relay is operated, replace the add-on gas

board.

The spark box Ear (►Electric boards) is not

powered.

Connect a voltmeter to the terminals of the "convection" burner

spark box Ear. Activate relay output AL12 from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, check the lighter cabling and repair

as required.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 25 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

The spark box Ear (►Electric boards) is

defective.

Activate output relay AL12 from "Outlets diagram" in the

"Service" screen. If the spark box Ear does not function, then

replace.

The gas board (Aag) is received a signal from the

safety box "Avr1" on SECU12 input on the gas

board "Aag".

Check if flame sensor is properly connected to the safety box

"Avr1". If properly connected, replace the safety box "Avr1".

Incorrect spacing of the gas flame sensor

Check the spacing of ignition electrodes and flame sensor.

The input PF1 (or PF2 on oven 20N) of the gas

add-on board is defective

Changing the add-on gas board (Aag)

E41

Gas safety device active on steam

generator burner.

Gas inlet valve closed, no gas or incorrect gas

type

Make sure that the gas supply is on. Check that the type of gas

being supplied conforms with that shown on the appliance's

specification plate. Open the gas valve

No grounding on power supply

Check the grounding of the device using a megohmmeter.

Check or have someone check the continuity of the ground and

the grounding.

Gas pressure too low

Measure the gas pressure by measuring from input of the gas

valve "Pin" (►Changing/adjusting gas valve) at the appliance

connection when all appliances running off the same supply are

operating at maximum capacity. The gas pressure must be

within the allowed limits.

If not, adjust the gas pressure or increase the capacity of the

gas supply (Expansion valve, pipe diameter).

Gas board AL3 output defective

Connect a voltmeter between the terminal AL3 of the add-on

gas board (Aag) et une terminal Xb. Operate the output relay

AL3 from "Outlets diagram" in the "Service" screen. If the

voltage reads zero when the relay is operated, replace the add-

on gas board.

The spark box Eag (►Electric boards) is not

powered.

Connect a voltmeter to the terminals of the Steam generator

burner spark box Eag. Operate the output relay AL3 from

"Outlets diagram" in the "Service" screen. If the voltage reads

zero when the relay is operated, check the lighter cabling and

repair as required

The spark box Eag (►Electric boards) is

defective.

Activate relay output AL3 from "Outlets diagram" in the

"Service" screen. If the Steam generator burner spark box Eag

does not function, then replace.

The gas board (Aag) is received a signal from the

safety box "Avg" on SECU3 input on the gas

board "Aag".

Check if flame sensor is properly connected to the safety box

"Avg". If properly connected, replace the safety box "Avg".

Incorrect spacing of the gas flame sensor

Check the spacing of ignition electrodes and flame sensor.

The input "PF3" of the gas add-on board is

defective.

Changing the add-on gas board (Aag)

E50

Humidity sensor faulty (This error only

appears when the oven is cooking not

preheating).

Open “Inlets diagram” on the “Service" screen and check the humidity value delivered by the sensor. This must be

greater than 3%. If this is not the case, check the following points:

The F2 fuse on the “Ahu” humidity additional

board (►Humidity board) is blown, (LED 100 off

(►LEDs identification))

Find the cause of the blowing and replace the fuse by the same

model.

The "Humidity" add-on board (Ahu) is not

powered.

Check the flashing of the communication LED "green" and

"orange" on the board. If they do not flash, use a voltmeter to

check that the board is powered (Set to DC current). This must

be +24Vdc

The "Humidity" add-on board (Ahu) is not

communicating with the Main board.

Check the flashing of the communication LED "green" and

"orange" on the board. If they do not flash, change the add-on

board

The J2 connector on the Ahu “Humidity”

additional board is not properly inserted into its

socket, or the wires are not properly connected in

the connector.

Check the connections on connector J2 of the AHU “Humidity”

additional board, check that the connector screws are tight, and

check that the extension connector is properly connected to the

sensor connector.

The humidity probe is defective

Check the status of the LEDs: if the “200” LED is flashing red or

steady red, replace the humidity sensor (►Communication

LEDs)

E60

Internal oven fan not functioning

Before resolving error E60, please refer to the "error history" on the “Service” screen and check that no other error

codes are displayed. If any are displayed, correct these errors first.

The fuse "Ftmv" is blown

Find the cause of the blowing and replace by the fuse with the

same model

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of the blowing and replace by the fuse with the

same model.

The fuse Fm (located in the black cylindrical fuse

holder near connector J22) of the Main board

(►Main board) has blown (LED "801" off

(►LEDs identification)) This LED lights only when

the contactor Kp is on

Find the cause of the blowing and replace by the fuse with the

same model.

The fan motor thermal protection is open

POWER OFF, check the continuity of the circuit between the

terminal A2 of the contactor Kp and terminal Xb. If the circuit is

broken, check the cabling or change the motor.

The main contactor Kp is not powered

Connect a voltmeter between the terminals A1 and A2 of the

main contactor Kp. Activate relay output Kp from "Outlets

diagram" in the "Service" screen. If the voltage reads zero

when the relay is operated, check the contactor Kp cabling or

replace the Main board.

The main contactor Kp is defective

Connect a voltmeter between the terminals A1 and A2 of the

main contactor Kp. Operate the output Kp from "Outlets

diagram" in the "Service" screen. If the main contactor Kp does

not close when powered, replace the contactor.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 26 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

The motor is not powered

POWER OFF: check the motor connector (it is properly

engaged in the socket, the connections are secure, etc.).

POWER ON: connect a voltmeter between the terminals Xm1

and Xm0. Operate the output switch Kp from "Outlets diagram"

in the "Service" screen. If the voltage is not between 208V et

240V, inspect the cabling.

Motor circuit cut

POWER OFF, check the continuity of the circuit between the

outputs S22 and S23 of the Main board and the terminal Xm0.

If the circuit is open (the measurement indicated is "OL"), check

the cabling or change the fan motor.

Short-circuited Triac motor

POWER OFF: measure the continuity between terminals E21

and S22 on the Main board. If they are short-circuited, the

ohmmeter will indicate a value close to “0” Ω. If this is the case,

replace the Main board.

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E70

Electronics overheat: temp. greater than

or equal to 149°F.

Ambient temperature around oven too high

The oven is not getting enough fresh air: clean the air intake

vents (►Location of technical components), check the

installation, and move any appliances that generate a lot of

heat, such as open burners or hot plates, away from the oven.

It may be necessary to install an optional heat shield.

Air inlets require cleaning

Clean the cool air intake vents

Technical fan(s) require(s) cleaning

Clean the technical fan(s)

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of blowing and replace with fuse of the same

model.

The output S08 in J16 connector of the Main

board is defective.

Connect a voltmeter between the terminal S08 of Main board and

a Xb terminal. Activate relay output S08 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

In electrical oven only, the output S091 in J16

connector of the Main board is defective.

Connect a voltmeter between the terminal S091 of Main board et a

Xb terminal. Activate relay output S091 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

The technical fan(s) is (are) not powered

Connect a voltmeter between the terminals ventilator power

supply. Activate relay output S08 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero, inspect the cabling.

On electric's ovens only, do the same operation with the S091

output. From "Outlets diagrams in the "Service" screen, activate

Kp, if the voltage between the terminal fan connexions is "0"V,

check the wiring.

The technical fan(s) is defective

Activate relay output S08 from "Oven diagram" in the "Service"

screen. If the fan does not turn, then replace. On electric ovens

only, activate output S091 by pressing on "Kp" from "Outlets

diagram" in "Service" screen then the second fan must run. If it

does not turn, replace it.

E71

Electronics overheat: temp. greater than

or equal to 158°F.

Ambient temperature around oven too high

The oven is not getting enough fresh air: clean the air intake

vents (►Location of technical components), check the

installation, and move any appliances that generate a lot of

heat, such as open burners or hot plates, away from the oven.

It may be necessary to install an optional heat shield.

Air inlets require cleaning

Clean the cool air intake vents.

Technical fan(s) require(s) cleaning

Clean the technical fan(s).

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of blowing and replace with fuse of the same

model.

The output S08 in J16 connector of the Main

board is defective.

Connect a voltmeter between the terminal S08 of Main board and

a Xb terminal. Activate relay output S08 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

In electrical oven only, the output S091 in J16

connector of the Main board is defective.

Connect a voltmeter between the terminal S091 of Main board et a

Xb terminal. Activate relay output S091 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

The technical fan(s) is (are) not powered

Connect a voltmeter between the terminals ventilator power

supply. Activate relay output S08 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero, inspect the cabling.

On electric's ovens only, do the same operation with the S091

output. From "Outlets diagrams in the "Service" screen, activate

Kp, if the voltage between the terminal fan connexions is "0"V,

check the wiring.

The technical fan(s) is defective

Activate relay output S08 from "Oven diagram" in the "Service"

screen. If the fan does not turn, then replace. On electric ovens

only, activate output S091 by pressing on "Kp" from "Outlets

diagram" in "Service" screen then the second fan must run. If it

does not turn, replace it.

E72

Electronics overheat: temp. greater than

or equal to 167°F.

Ambient temperature around oven too high

The oven is not getting enough fresh air: clean the air intake

vents (►Location of technical components), check the

installation, and move any appliances that generate a lot of

heat, such as open burners or hot plates, away from the oven.

It may be necessary to install an optional heat shield.

Air inlets require cleaning

Clean the cool air intake vents

Technical fan(s) require(s) cleaning

Clean the technical fan(s)

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of blowing and replace with fuse of the same

model.

The output S08 in J16 connector of the Main

board is defective.

Connect a voltmeter between the terminal S08 of Main board and

a Xb terminal. Activate relay output S08 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

In electrical oven only, the output S091 in J16

connector of the Main board is defective.

Connect a voltmeter between the terminal S091 of Main board et a

Xb terminal. Activate relay output S091 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 27 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

The technical fan(s) is (are) not powered

Connect a voltmeter between the terminals ventilator power

supply. Activate relay output S08 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero, inspect the cabling.

On electric's ovens only, do the same operation with the S091

output. From "Outlets diagrams in the "Service" screen, activate

Kp, if the voltage between the terminal fan connexions is "0"V,

check the wiring.

The technical fan(s) is defective

Activate relay output S08 from "Oven diagram" in the

"Service"screen. If the fan does not turn, then replace. On

electric ovens only, activate output S091 by pressing on "Kp"

from "Outlets diagram" in "Service" screen then the second fan

must run . If it does not turn, replace it.

E75

Screen electronic (SoM) temperature

above 176°F. The temperature of the

electronics has exceeded its critical

operating threshold. The oven can no

longer operate.

Ambient temperature around oven too high

The oven is not getting enough fresh air: clean the air intake

vents (►Location of technical components), check the

installation, and move any appliances that generate a lot of

heat, such as open burners or hot plates, away from the oven.

It may be necessary to install an optional heat shield.

Air inlets require cleaning

Clean the cool air intake vents

Technical fan(s) require(s) cleaning

Clean the technical fan(s)

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of blowing and replace with fuse of the same

model.

The output S08 in J16 connector of the Main

board is defective.

Connect a voltmeter between the terminal S08 of Main board and

a Xb terminal. Activate relay output S08 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

In electrical oven only, the output S091 in J16

connector of the Main board is defective.

Connect a voltmeter between the terminal S091 of Main board et a

Xb terminal. Activate relay output S091 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

The technical fan(s) is (are) not powered

Connect a voltmeter between the terminals ventilator power

supply. Activate relay output S08 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero, inspect the cabling.

On electric's ovens only, do the same operation with the S091

output. From "Outlets diagrams in the "Service" screen, activate

Kp, if the voltage between the terminal fan connexions is "0"V,

check the wiring.

The technical fan(s) is defective

Activate relay output S08 from "Oven diagram" in the "Service"

screen. If the fan does not turn, then replace. On electric ovens

only, activate output S091 by pressing on "Kp" from "Outlets

diagram" in "Service" screen then the second fan must run. If it

does not turn, replace it.

E76

Screen electronic (SoM) temperature

above 194°F. The temperature of the

electronics has exceeded its critical

operating threshold. The oven can no

longer operate.

Ambient temperature around oven too high

The oven is not getting enough fresh air: clean the air intake

vents (►Location of technical components), check the

installation, and move any appliances that generate a lot of

heat, such as open burners or hot plates, away from the oven.

It may be necessary to install an optional heat shield.

Air inlets require cleaning

Clean the cool air intake vents

Technical fan(s) require(s) cleaning

Clean the technical fan(s)

The fuse F3 of the Main board (►Main board)

has blown (LED "701" off (►LEDs identification))

Find the cause of blowing and replace with fuse of the same

model.

The output S08 in J16 connector of the Main

board is defective.

Connect a voltmeter between the terminal S08 of Main board and

a Xb terminal. Activate relay output S08 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

In electrical oven only, the output S091 in J16

connector of the Main board is defective.

Connect a voltmeter between the terminal S091 of Main board et a

Xb terminal. Activate relay output S091 from "Outlets diagram" in

the "Service" screen. If there is no voltage, replace the Main board.

The technical fan(s) is (are) not powered

Connect a voltmeter between the terminals ventilator power

supply. Activate relay output S08 from "Outlets diagram" in the

"Service" screen. If the voltage reads zero, inspect the cabling.

On electric's ovens only, do the same operation with the S091

output. From "Outlets diagrams in the "Service" screen, activate

Kp, if the voltage between the terminal fan connexions is "0"V,

check the wiring.

The technical fan(s) is defective

Activate relay output S08 from "Oven diagram" in the

"Service"screen. If the fan does not turn, then replace. On

electric ovens only, activate output S091 by pressing on "Kp"

from "Outlets diagram" in "Service" screen then the second fan

must run. If it does not turn, replace it.

E80

Communication fault between boards.

Degraded communications cable

Replace the communication cable between Main board "Ar"

and Interface board "Ai". If the problem persists, check

electronics boards.

Defective electronic boards

Test and replace the faulty electronic board(s) following the

procedure (►Replacing electronic boards).

E81

Break in communication between circuit

boards.

Degraded communications cable

Replace the communication cable between Main board "Ar"

and Interface board "Ai". If the problem persists, check

electronics boards.

Defective Main boards

Test and replace the faulty electronic board(s) following the

procedure (►Replacing electronic boards).

To reset this fault, the power supply to the oven must be cut off by disconnecting the associated protection circuit breaker.

E82

SD Card fault.

SD card corrupted

Replace the SD card as described in the first chapter of this

document (►Replacing electronic boards).

E83

Cloud error.

The network is inaccessible

Restore access to the Ethernet or WiFi network

Is the network cable connected correctly?

Check the connection to the RJ45 socket on the screen board,

check or have checked the condition of the cable using a

network cable tester, replace the cable if necessary.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 28 / 76

3VE490099EM – 10/25

Code

Title

Probable Causes

What to do?

The wifi dongle key is incorrectly connected or

faulty

Check that the Wifi dongle key is connected to the USB socket,

check that the Wifi dongle key is working properly and replace it

if necessary.

The screen board is faulty

Replace the screen board following the procedure (►Replacing

electronic boards).

E90

Steam generator fault (E11,12,13,14,15)

during cycle.

A fault E11,12,13,14,15 appeared and remained

for more 3 minutes, triggering the TWIN

CONTROL and automatically switching to

Convection mode.

Check the error history to identify the original error and potential

causes.

E91

Steam generator fault (E11,12,13,14,15)

during cleaning.

A fault E11,12,13,14,15 appeared and remained

for more than 3 minutes, triggering the TWIN

CONTROL and removing the steam phases.

Check the error history to identify the original error and potential

causes.

E92

Humidity sensor fault (E50).

A fault E11,12,13,14,15 appeared and remained

for more than 3 minutes, triggering the TWIN

CONTROL and removing the steam phases.

Check the error history to identify the original error and potential

causes.

E93

Core probe fault (E30, E34).

A fault E130, E34 appeared and remained for

more than 3 minutes, triggering the TWIN

CONTROL and removing the steam phases.

Check the error history to identify the original error and potential

causes.

E94

Fault preventing washing.

A fault E00, 02, 14, 60, 81 appeared and

remained for more than 3 minutes, triggering

TWIN CONTROL and cancelling the clean

sequence.

Check the error history to identify the original error and potential

causes.

I98

Started with Remaining Water Treatment

Capacity at 0.

The water treatment system has reached its

maximum treatment capacity

Carry out or arrange for maintenance of the water treatment

system

I99

Started with Number of days before

service < 0.

The maintenance frequency has been reached or

exceeded.

Contact the technical department to arrange preventive

maintenance

i100

Gas Control: Speed control of a gas fan

done successfully.

During preventive maintenance or any other

operation requiring this check, it has been carried

out successfully, the fan speed in ignition mode

does not exceed +/- 20% of the setpoint value on

average.

No intervention

E101

Gas Control: Speed control of a gas fan,

with speed drift/ speed issue.

During preventive maintenance or any other

operation requiring this control, the fan speed in

ignition mode exceeds +/- 20% of the setpoint

value on average.

Check rotating motor, no suspicious noises, replace gas board

E102

Gas Control: Speed control of a gas fan

made, with acquisition issue.

During preventive maintenance or any other

operation requiring this control, the Aag gas board

does not detect the return of the speed setpoint.

Check fan motor wiring, i.e. correct connection of speed

feedback connector, correct connection of connector on gas

board, wiring between these two elements, if correct, replace

motor.

i103

Gas Control: Control of a burner done,

with rapid ignition, OK.

If the average ignition time is less than or equal to

9 seconds.

No intervention

E104

Gas Control: Control of a burner done,

with average ignition but OK.

If the average ignition time is greater than 9

seconds and less than or equal to 19.5 seconds.

A word of caution: plan a thorough check during the next

preventive maintenance cycle.

E105

Gas Control: Control of a burner done,

with ignition OK but difficult.

If average ignition time is greater than 19.5

seconds and less than or equal to 30 seconds.

Check burner ignition line, gas pressure at time of sequence,

condition of valve and spark box if ok disassemble burner and

readjust ignition electrodes.

E106

Gas Control: Control of a burner done,

with ignition OK but very problematic.

If the average ignition time is greater than 30

seconds and less than or equal to 51 seconds.

Disassemble burner adjust or replace electrodes

E107

Gas Control: Ignition failed. Safety

activated.

If average ignition time is greater than 51

seconds.

See error E40 or E41

E108

The grease collection is stopped.

The grease collection valve is closed.

Open the valve.

The pressure switch is defective

From "Hydraulics diagram" in the "Service" screen, check the

state of the E1 input. If the button lights up in yellow, the contact

is open then check there is no overpressure, check the wiring,

and if the problem persists, replace the pressure switch. Be

careful, the pressure switch is setting by the builder, never

modify the set.

The circuit is blocked

Check the grease flows properly, if problem, clean the circuit

and/or replace the defective elements.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 29 / 76

3VE490099EM – 10/25

5.3 MAINTENANCE SCREENS

After taking into account the information provided by the customer, and if no error message is displayed on the screen, activate the diagnostic help

module, which consists of 3 separate screens.

Help function checks the board's inputs and outputs, as well as the associated peripheral components:

- Screen 1 "Inlets Diagram" check inputs: temperatures, doors, water level, humidity, etc…

- Screen 2 "Outlets Diagram", comprising two screens, controls outputs: ventilation, heating, lighting, safety contactor, technical

ventilation, IN valve, etc.

- Screen 3 "Hydraulics diagram" controls hydraulics outputs: water solenoid valves, cleaning pump, drain pump, descaling pump...

You can navigate between the various diagrams using the display area at the bottom of the screen, accessible from any of the 4 screens of the

diagnostic assistance module.

5.3.1 INLETS STATUS SCREEN

Imputs

Normal status

Remarks

Ban

Cooking cavity temperature

Door position

Padlock closed = door closed

Padlock open = door open

Bnl

Cleaning box level

Red line through symbol = no water

Bnc

Steam generator water level

Red line through symbol = no water

Bgn

Steam generator temperature

Bsc1…3

Core probe temperature

Humid.

Humidity rate

5.3.2 OUTLETS STATUS SCREEN

This screen is divided into 2 screens: Outlets 1/2 and Outlets 2/2.

Screen 1/2

Pressing a button activates a timer, the duration of which may vary according to

the element being controlled. This time delay can be cancelled by pressing the

same button again.

No. Outlet

Components

Operating

Leds lighting

1 press on the button activates

the lighting for 60s

In flapper motor

1 press on the button activates

the flapper for 60s

Technical fan

1 press on the button activates

the fan for 5s

Safety contactor

1 press on the button activates

the contactor for 1s

Turbine (clockwise)

1 press on the button

activates the turbine for 5s

Turbine (counterclockwise)

1 press on the button

activates the turbine for 5s

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 30 / 76

3VE490099EM – 10/25

Screen 2/2: Electric ovens

Pressing a button activates a timer, the duration of which may vary according to

the element being controlled. This time delay can be cancelled by pressing the

same button again.

No. Outlet

Components

Operating

Heating contactor

1 press on the button activates

the contactor for 1s

Steam generator contactor

1 press on the button

activates the contactor for 1s

Screen 2/2: Gas ovens

Pressing a button activates a timer, the duration of which may vary according to

the element being controlled. This time delay can be cancelled by pressing the

same button again.

No. Outlet

Components

Operating

AL12

Ignitor

1 press on the button, activates

the spark box for 5s

AL3

Steam generator spark

box

1 press on the key, activates

the spark box for 5s

PF1

Burner 1 flame present

Crossed out: flame absent

Not crossed out: flame present

PF2

Burner 2 flame present

Crossed out: flame absent

Not crossed out: flame present

PF3

Burner 3 flame present

Crossed out: flame absent

Not crossed out: flame present

S10

Outlet S10

1 press on the button activates

outlet for 10s

S11

Outlet S11

1 press on the button activates

outlet for 10s

S12

Outlet S12

1 press on the button activates

outlet for 10s

SECU

Safety

Green: not active Red: active

Procedure for checking the operation of the gas heater: presence of a flame in the burner (S10 - S11 or S12)

During the preventive maintenance visit, or in order to check the burners BEFORE removing them, you can use TWO TOOLS on this screen:

- The S10 / S11 / S12 burner buttons (number of burners depending on the model): Each button will attempt to ignite the burner, resulting in

correct ignition and flame detection (the corresponding PFx icon is no longer crossed out), or in a safety shutdown (the associated SECU

label changes to red).

- The « AUTO DIAGNOSTIC S10, S11 and S12 » buttons : These buttons are used to check that the gas burner fans are operating correctly

and then to make a real evaluation of the ignition quality. Even if ignition takes place, the quality will be assessed on 4 levels, from Fast

(perfect), to Problematic, to Medium and Difficult. Depending on the rating, it will not be necessary to remove the burner to check the

electrodes and burners.

Using the S10 / S11 / S12 burner buttons

» Press button S10 or S11 (depending on the model) or S12 (depending on the type of burner to be tested) to

activate the burner concerned.

 For 10 seconds, outlets Ar-10 / Ar-11 or Ar-12 on the Main board closes, as well as outlets Ar-081 and Ar-09.

This causes the relay on the gas board to close, initiating an ignition cycle.

» If this fails, try again.

 If the PF1 / PF2 or PF3 sticker is no longer crossed out, and the associated SECU sticker stays green, this

indicates that the system is operating correctly.

- Check the heating elements (spark box, gas board, etc.). (►Troubleshooting)

» If another failure occurs, make a third attempt.

 If the PF1 / PF2 or PF3 sticker is crossed out, and the associated SECU sticker changes to red, this indicates

that the system isn’t operating correctly.

PF1

PF2

PF3

SECU

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 31 / 76

3VE490099EM – 10/25

- Dismantle the burner and clean and/or adjust the electrodes in accordance with the instructions in this

manual. (► Electrode inspection). (►Control of the electrodes)

Using the “S10 / S11 / S12 auto-diagnostic” buttons

In progress

» Pressing the AUTO DIAGNOSTIC button S10 or S11 (depending on the model) or S12 (depending on the type of

burner to be tested) activates the burner self-diagnosis module.

5.3.3 HYDRAULIC DIAGRAMS

Pressing a button activates a timer, the duration of which may vary according to

the element being controlled. This time delay can be cancelled by pressing the

same button again.

No. Outlet

Components

Operating

P - 13

Cleaning pump

1 press on the button activates

the pump for 5s

P - 06

Steam generator drain pump

1 press on the button activates

the pump for 5s

P - 05

Cleaning box drain pump

1 press on the button activates

the pump for 5s

P - 04

Descaling pump

1 press on the button activates

the pump for 5s

P - 03

Grease collection pump (optional)

1 press on the button

activates the pump for 5s

Ycond. - 18

Condenser solenoid valve

1 press on the button activates

the solenoid valve for 60s

Yspray - 15

Spray solenoid valve

1 press on the button activates

the solenoid valve for 60s

Ysteam

generator - 20

Steam steam generator solenoid

valve

1 press on the button activates

the solenoid valve for 60s

Ycool - 19

Cooling solenoid valve

1 press on the button activates

the solenoid valve for 60s

Ydescal. - 16

Descaling solenoid valve

1 press on the button activates

the solenoid valve for 60s

No. Inlet

Components

Operating

Pressure switch Grease

collection (optional)

Normally closed, opens if there

is excess pressure in the circuit

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 32 / 76

3VE490099EM – 10/25

5.4 COMMUNICATIONS LEDS

5.4.1 LEDS IDENTIFICATION

Main board, humidity board

Main board

LED

Colour

Status

Designation

100

Red

On - Permanent

3.3 Volt voltage present

101

Red

On - Permanent

5 Volt voltage present

400

Orange

Flashing

Tx signals RS485 communication

401

Green

Flashing

Tx signals RS485 communication

402

Orange

Flashing

Tx signals RS485 communication

403

Green

Flashing

Tx signals RS485 communication

600

Green

On - Permanent

Outlet S1 switched on

601

Green

On - Permanent

Outlet S2 switched on

602

Green

On - Permanent

Outlet S3 switched on

700

Red

On - Permanent

Fuse F2 OK

701

Red

On - Permanent

Fuse F3 OK

702

Red

On - Permanent

Fuse F4 OK

800

Red

On - Permanent

Fuse F1 OK

801

Red

On - Permanent

Lighting if actived Kp. Fuse Fm OK

Humidity board

LED

Colour

Status

Designation

100

Green

On - Permanent

Fuse F1 OK

200

Green

Flashing then Off

Indicates uncorrect operation of the

humidity sensor

201

Green

Flashing then

Permanent

Indicates correct operation of the

humidity sensor

400

Orange

Flashing

RS485 communication Tx signals -

Transmit

401

Green

Flashing

RS485 communication Rx signals -

Reception

Gas board

LED

Colour

Status

Designation

400

Orange

Flashing

Tx signals RS485 communication

401

Green

Flashing

Tx signals RS485 communication

500

Red

Permanent

Presence of gas in the gas steam

generator burner

501

Red

Permanent

Presence of gas in convection heater

burner 2 (on certain models only)

502

Red

Permanent

Presence of gas in convection heater

burner 1

503

Red

Permanent

Gas safety fault - steam generator

burner

504

Red

Permanent

Gas safety fault - convection heat

burner

403

801

800

100

700

701

401

400

100

101

702

602

600

601

201

401

400

504

503

500

501

502

402

400

401

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 33 / 76

3VE490099EM – 10/25

Interface board

LED

Colour

Status

Designation

100

Red

On - Permanent

3.3 Volt voltage present

101

Red

On - Permanent

5 Volt voltage present

500

Orange

On - Permanent

Tx signals RS485 communication

501

Green

On - Permanent

Tx signals RS485 communication

5.4.2 OPERATION: COMMUNICATION

Legends

LED

Meaning

Green - Receiving

Orange - Transmitting

Red - Power on

LED off

501

500

100

101

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 34 / 76

3VE490099EM – 10/25

Communication LEDs Main board and Interface board

Ai Interface Board

Aa Main board

Diagnostics

Solutions

101

100

500

501

400

401

101

100

Aa and Ai board - OK

Functioning normally

Power supply failure

Check for 24 Vd.c. at the terminals of J18

Connection problem with Ai board

Replace interconnecting cable between

Ar and Ai board, and/or Ai board

Aa board - Out of order

Replace the Aa board

Ai board - Out of order

Replace Ai board

Interconnecting Cable between Ai

board and Aa assembly faulty

Replace interconnecting cable

Communication LEDs Gas board

Gas board Aag

Diagnostics

Solutions

400

401

Aag board - OK

Functioning normally

Aag board - Out of order

Replace the board

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 35 / 76

3VE490099EM – 10/25

Communication LEDs Humidity board

Humidity board Ahu

Diagnostics

Solutions

401

400

Ahu board - OK

Functioning normally

Ahu board - Out of order

Replace the board

Humidity board Ahu

Diagnostics

Comments

201

Standby

Initialization

Flashes - Start-up or wake-up from

standby.

Start-up calibration

Alternating flashes.

Initial heating ramp on heater

Blinking proportional to heating percentage.

Heater temperature within control

range

Normal functioning.

Heater overheating

Flashing.

Other errors

- Ar communication error

- CJ125 calibration error

- Supply voltage too low

- Humidity sensor missing or incorrectly

connected

- Heater probe current zero.

400

401

100

201

200

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 36 / 76

3VE490099EM – 10/25

5.5 OTHER SYMPTOMS

All electrical measurements must be carried out in compliance with local legislation (personnel authorization, use of PPE, etc.).

OFF-VOLTAGE tests must absolutely be carried out in this configuration. Make sure you carry out these tests safely (consignment, etc.).

SYMPTOM

CAUSE

WHAT TO DO?

The oven is not working the display is off.

- Supply voltage is not present at the device terminals.

Check condition of the power cable and all the connection points, and rectify any problems

encountered.

- Oven circuit breaker is not switched on.

Switch circuit breaker on or have it switched on. If it trips again, verify appliance is properly

insulated; leakage currents must be less than 30mA.

- System voltage is not present at the Ar Main board terminals.

Check voltage at terminals 1 and 2 of connector J18 (refer to the electronic diagram in this

manual). If there is no voltage, disconnect connector J18:

- If voltage is present again, replace the Main board,

- If voltage is still absent, check the Tc power supply. Verify Its correct operation is

indicated by a green LED; if necessary, replace power supply.

- Molex connector link cable between Main board and the screen is faulty.

Verify voltage is present. Check communication LEDs (see LED assignment section in this

document). If the problem persists, replace the cable.

- Screen is faulty.

If the problem persists, replace the screen.

- Short-circuit at switching power supply output.

LEDs (switching power supply, red LEDs on the Main board) are flashing. Disconnect cable

between the interface board and encoder board.

- Encoder inoperative, LED ring does not light up.

Verify it is correctly connected and operating correctly. If problem persists, replace encoder

board.

Screen inoperable, system won't start, random malfunctions, difficulty updating.

- Loss of communication.

Refer to the "screen inoperable or blocked" flowchart in this manual.

Display on, oven not working.

- An error code displayed (blocking message).

Refer to error code section of this manual.

- The oven door is not closed properly.

Make sure oven door is correctly locked.

- The switch does not detect when the oven is closed.

Check status of the door closing position switch in the technical panel, if the output remains at "0":

On the Aar Main board, verify J5 connector is correctly connected to its socket, verify contact

closes when the door is closed and that it is correctly fitted mechanically. If the problem

persists, adjust the door and replace the switch if necessary.

The screen is lit, the oven works but the lighting does not.

- LED banners are not powered.

Refer to "Enclosure lighting fault" flow chart in this document.

The screen is lit, the oven, lighting and ventilation are working, but it does not heat up or does not reach the set temperature.

Special case of electric ovens

- One or more heating elements do not work.

Refer to "electric heater fault" diagram in this document.

Special case of gas ovens

Burner does not ignite.

- Spark box does not work.

Refer to "gas spark box fault" diagram in this document.

- Gas fan not working.

Check fan power supply at terminal 2 of Kbg or Kbr and Xb.

- if 230Va.c. present, change the fan.

- if there is no 230Vac, verify Kbg or Kbr contactor is switched on, check the connections

and tighten the screws, etc.

- No gas or too low pressure.

Verify gas entering the appliance is of the correct type and pressure.

- The gas valve does not work.

Check the resistance of the 848 Sigma gas solenoid valve coils Ev1 (terminals 4-3) and Ev2

(terminals 1-3);

- If the resistance is greater than 0, check the gas pressure at the valve inlet and the

burner heating demand; if the burner does not ignite, replace the valve,

- If the resistance is equal to 0, replace the valve.

- The ionisation electrode does not detect the flame.

Check electrode (see electrode adjustment section of this manual).

- The flame control box does not work.

Turn off the gas supply and start cooking, if at the end of the ignition sequence:

- "gas error" fault appears, the flame control box is operational, proceed with the above

checks.

- if the error does not appear, replace the flame control box.

Noisy burner.

- The gas settings are incorrect or the wrong gas is being connected.

Check in the technician parameters that the gas selected corresponds to what is indicated on

the oven identification plate.

Check gas supplied to the oven is the same as that indicated on the oven identification plate.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 37 / 76

3VE490099EM – 10/25

SYMPTOM

CAUSE

WHAT TO DO?

Noisy burner.

- Gas valve incorrectly set.

Check CO2 level by following the procedure indicated in the manual.

- Air supply problem.

Check that the air inlet tube is correctly connected and that it is not obstructed.

- The silicone venturi valve connection tube is disconnected or faulty.

Check that the tube is correctly connected. If the problem persists, replace it.

Explosion on starting gas burner.

- The ignition electrode is incorrectly adjusted.

Check the electrode settings: insulation of the wires in relation to ground (stray sparks), check

that the electrode soapstone is not broken See "Checking the electrodes" section.

Polluting burner.

- The gas settings are incorrect or the wrong gas is being connected.

Check in technician parameters that gas selected corresponds to what is indicated on the

oven identification plate.

Check gas supplied to the oven is the same as what is indicated on the oven identification

plate.

- Gas valve incorrectly set.

Check CO2 level by following the procedure indicated in the manual.

Burner fan running at full speed.

- Communication fault between the Main board and the gas valve.

Check status of LEDs on gas board.

- If they are off, verify the gas board is connected to the Main board (rear connector,

condition of connections) and the gas board mounting screws are secure to the Main

board.

- If they are lit, check the various connections (screwing and fixing the connectors to their

sockets) from gas board to the fan.

The burner emits a random whistling sound.

- When the oven is cold, a hissing sound may be heard.

This should disappear quickly as the burner heats up.

- If the problem persists.

Check air intakes (unobstructed vents).

The spark box works continuously.

The Presence Flame (PF) does not return.

Fault in the connection between gas box and the gas board, verify wires and connections are

secure.

Fault in the connection between the gas board and Main board, check state of the LEDs on

gas board, verify rear connection between the gas board and Main board, verify the gas board

screws and connections are secure to the Main board, if the problem persists, replace the gas

board.

The pump whistles.

- Air in the circuit.

Check the circuit for leaks (connections, hoses, etc.).

- Defective bearings.

Verify the flow rate is as specified in this manual.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 38 / 76

3VE490099EM – 10/25

5.6 FLOWCHART

5.6.1 SCREEN INOPERATIVE OR BLOCKED

The appliance has these

malfunctions:

- The system does not start,

- Random malfunctions,

- Difficulties in updating,

- Interface board crash,

- Screen inoperative...

Stop the oven using the

encoder, then restart it. While

the data is being loaded, press

the RESET key and then the

RESTART key.

Using the LED chapter

document, check the status

of the communication LEDs

and, if necessary, replace

the faulty board.

Is the screen

usable?

Stop the oven using the

encoder, then restart it. While

the data is being loaded, press

the RESET key and then the

REBOOT key.

Stop the oven using the

encoder, then restart it. While

the data is being loaded, press

the RESET key and then the

RESET DEFAULT SETTING

key.

Has the problem

been solved?

Has the problem

been solved?

Has the problem

been solved?

YES

REBOOT: Stops the

appliance and saves the

user interface (►Reset).

RESET DEFAULT SETTING:

Overwrites current settings

and user profiles (►Reset

RESTART: Hot oven restart

with user interface

preserved (►Reset).

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 39 / 76

3VE490099EM – 10/25

5.6.2 LIGHTING FAULT OF COOKING CAVITY

The door LEDs do not light up.

After checking that the door is closed,

From the maintenance menu, press the

lighting icon.

Locate the Ta

switching power

supply using the

electrical circuit board

diagram and the

voltage presence LED.

Disconnect the

LED strip from the

lighting terminal

box

LED 600 on the

Ar board lights

up.

Press the lightning icon

Using a multimeter

placed between S110

and Ta(-), check for the

presence of voltage.

Using a multimeter,

check the voltage

between L and N.

Power supply

LED on.

The power

supply LED

lights up again.

A voltage of

230Va.c.

appears.

A voltage of

24Vd.c. appears.

Check the

230Vac supply

line (connections,

wiring, protection,

etc.).

YES

Disconnect

connector

J12.

Find the

causes of

the short

circuit.

YES

Power off,

replace power

supply.

YES

After checking

the

connections,

replace the

defective cover.

Check fuse F5 and, if

necessary, replace it

after eliminating the

cause of its failure.

YES

LED 600 on the

Ar board lights

Replace the

LED Strip

Replace

the Main

Board Ar

YES

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 40 / 76

3VE490099EM – 10/25

5.6.3 ELECTRIC HEATER FAULT

The electric oven does not heat up.

From the maintenance menu, activate the

operation of the contactors: Kp, Kg steam

heater and Kr convection heater.

On the Ar board, verify

connector J16 is

correctly connected and

that the wires are

correctly connected to

the terminals.

Keep the contactor

engaged

Place a measuring

device between

terminals 2/4-2/6-4/6.

The contactor(s)

close(s) for 3 sec.

Oven off, replace the

heating element.

Oven off, replace the

contactor.

The connector is

in place and the

connections are

secure.

The device

indicates the

nameplate

voltage.

A voltage of

230Vac appears

on the multimeter

screen.

A voltage of

230Vac appears

on the multimeter

display.

Replace the Ar board.

YES

Connect the measuring

device to terminals 1/3-

1/5-3/5 of the contactor.

If check the fuses and/or

the oven power supply.

YES

Hold the contactor

control + Place the

multimeter on terminals

A1 and A2 of the

controlled contactor.

YES

Place a measuring device

between terminals S12/S11/S10

depending on the type of oven

and the cooking mode selected

in N230Va.c. and select Kr or Kg

from the maintenance menu.

Reconnect and/or

ensure that the

connector is correctly.

YES

The device

indicates the

nameplate

voltage.

Verify connections and

condition of the wiring

between the Ar board

and the controlled

contactor.

YES

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 41 / 76

3VE490099EM – 10/25

5.6.4 GAS SPARK BOX FAULT

On the Aag board, place

a multimeter between

Xb and J7-2 (Al12) or

J7-3(Al3)

+ Activate output Al12 or

Al3 on the Aag board.

Spark box OK.

A spark occurs at

the spark box

outlet.

Replace defective

spark box.

Presence of

230Va.c. at the

output of Al12 or

Al3.

Presence of

230Va.c. at the

input of the Aag

board

On the Aag board, place

the multimeter between

Xb and J7-1.

YES

Find the cause of the

short circuit.

Replace the Aag board.

YES

Verify spark box working properly

Remove approx. 1 cm of

the ignition electrode

wire + From the

maintenance menu,

activate output Al12

(convection heat) or Al3

(steam generator

heating).

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 42 / 76

3VE490099EM – 10/25

5.7 RESET

5.7.1 ACCESS TO THE RESET SCREEN

» Switch on the display by holding down the encoder button until the power-on bar graph is displayed.

» Wait for the "Home" menu to appear.

» Press "Reset" button.

 The display shows a pop-up of possible actions.

5.7.2 PARAMETERS LIST

➔

Switch Chef’sCombi to Safe Mode

➔

Restart Interface

➔

Restart interface and Main board

➔

Reset to default settings

➔

Reinstall an update from a USB key

➔

Reinstall last update

➔

Reset Chef’sCombi configuration (accessible with factory PIN code only)

➔

Validate or cancel selected "Reset" type

Safe mode

This action enables you to go into safe mode with minimal configuration. Only the ambient temperature: the default temperature is 356°F, and the

cooking mode: convection heat cooking mode are indicated.

5 - TROUBLESHOOTING

CHEF’SCOMBI

Page 43 / 76

3VE490099EM – 10/25

On confirmation, the continuous icon appears on the display, indicating cooking similar to the continuous cooking mode. When the screen is pressed,

an information message appears, indicating the following:

"SAFE MODE ACTIVATED

If you want to procees in safe

mode, just validate.

If you want to exit safe mode,

turn off the oven (press and

hold knob for 3 seconds), or

turn off the power.

✓

In the event of a problem with the screen, this mode can be obtained by successively opening the door 3 times within 5 seconds at power-up.

Restart: Restart the interface

This option performs a basic restart of the Chef'sCombi interface. No customer-configured parameters are affected.

Reboot: Restart with reset

This function restarts the unit and exits the current cycle. No customer-configured parameters are affected.

Reset default settings

This function resets current settings and user profiles. Access to this action is protected by a PIN code (level 5 or 7), guaranteeing the security of the

process (►Settings – PIN Codes).

In particular, it deletes parameters, profiles, customer protocols, manufacturer protocols and customer photos.

After a reset, it is necessary to redo the CO control and "Steam generator calibration".

WARNING! Please inform the customer!

All parameters configured and copied by the customer, such as settings, profiles, protocols

(recipes), photos, etc… will be deleted.

Deploy update from USB : Reinstall an update from a USB stick

This feature is active when a USB key is connected to the appliance. It allows you to reinstall (force) an update from a USB key.

When a manufacturer update is in progress, there is no need to activate this menu. If the update version

on the USB key is higher than the one already present in the chef’sCombi memory, the update starts

automatically (►Settings - Updating the software).

Redeploy last update : Reinstall the last update

This menu allows you to reinstall the latest update installed on the appliance. It is essential to select this option when corrupted parameters have been

installed or detected by the appliance. A clean backup is kept on the SD card.

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 44 / 76

3VE490099EM – 10/25

6. ELECTRIC DIAGRAMS

6.1 DIAGRAMS

6.1.1 GAS OVENS

Wiring diagram

0,2A

3,15A

230 VAC

0 Vsys

+24 Vsys

Ban

Baa

Bgn

110

°C

Bga

24V dc

PEPE

X(-)

35 W

3 4

PF1

S1-

S1P

S1H

S1+

Black

White

Orange

Red

PF2

S2-

S2P

S2H

S2+

Xvb

Kbr

1 2

Secu 12

230Vac

5 6

7 6

Black

White

Orange

Red

Spark

Flame

Zbg

Kbg

Xvb

Kbg

1 2

Spark

Flame

Zvb

Kbr

Ar-081

Mpn

Cpn

Yspray

Bsc (3xPT100)

230 VAC

24 VAC

3,15A

+24 VDC

24V dc

Ee1

Ee2

Xe-B

Xe-G

Mdg

Mvm

Mvg

091

Nbt

Mt1

081

Ydescal.

Ycool

Ycond.

Bsc 1

Bsc C

Bsc 2

Bsc 3

Bnl

Niveau d'eau boite de lavage

cleaning box water Level

Bnc

Niveau eau générateur vapeur

steam generator water Level

Entrée libre / free Input

PF3

S3-

S3P

S3H

S3+

Secu 3

Al-3

Eag

Ebg

Ear

Ebr

AL-12

Fvb-S

75 W

Yboiler

0 Vsys

+24 Vsys

Ahu

Eclairage cavité / cavity Lighting

Electroaimant Clapet In / Air Inlet Valve Electromagnet

Pompe détartrage / descaling Pump

Pompe vidange mouffle / drain cavity Pump

Pompe vidange gén&érateur / drain generator Pump

Connexion neutre / neutral Connection

Ventilation technique / technical Fan

Contacteur de puissance / power Contactor

Allumeur Chauffe convection

Commande EV gaz Chauffe convection

Moteur brûleur Chauffe convection

Allumeur Chauffe génértateur vapeur

Commande EV gaz Chauffe générateur vapeur

gas SV for steam generator Heating Control box

Moteur brûleur Chauffe generateur vapeur

steam generator Heating burner Motor

gas SV for convection Heating Control box

steam generator Heating Spark box

convection Heating burner Motor

convection Heating Spark box

Pompe lavage / cleaning Pump

EV douchette / spray hose SV

EV dissolution poudre / descaling powder SV

EV condenseur / condenser SV

EV refroidissement / cooling SV

EV générateur vapeur / steam generator SV

Connexion neutre / neutral Connection

Shu

+24Vsys

0Vsys

G:\R&D\P roj ets NT N PD Dossi er s\P N PD FM 21 NXG GLO B AL CO MB I\ Readi ness Serv ic es\S chém as électriques_Electrical diagrams\Capture 1.PNG

Er1

Sr1

F6-6.3A

Contact porte / door contact

Sonde à coeur / core Probe

Sonde temperature generateur

generator temperature Probe

Sonde température ambiante

Ambient temperature Probe

électroniques

electronic boards

Alimentation servitudes

utilities Supply

Filtre CEM / EMC Filter

Etat de cuisson en cours / cooking in progress Statut

Contact libre de potentiel / free potential Contact

Alimentation cartes

Supply

Cavity lighting

Descaling pump

Drain cavity pump

Drain generator pump

Technical fan

Power contactor

Allumeur chauffe

convection

Commande EV gaz

chauffe convection

Moteur brûleur -

chauffe convection

Allumeur - générateur

vapeur

Commande EV gaz -

générateur vapeur

Moteur brûleur -

générateur vapeur

Cleaning pump

Spray hose SV

Descaling powder SV

Condenser SV

Cooling SV

Steam generator SV

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 45 / 76

3VE490099EM – 10/25

Power diagram 6 & 10 GN 1/1

Control transformer

Cavity fan motor

transformer

Power diagram 6 & 10 GN 2/1

Control transformer

Cavity fan motor

transformer

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 46 / 76

3VE490099EM – 10/25

6.1.2 ELECTRIC OVENS

Wiring diagram

3.15A

0,2A

3,15A

3.15A

Ban

Baa

Bgn

110

Bsc 1

Bsc (3xPT100)

Bsc Com

Bsc 2

Bsc 3

Bnl

Niveau d'eau boite lavage

°C

Bga

water Level cleaning box

Ee1

Ee2

Xla-G

Xla-B

Bnc

Niveau d'eau générateur vapeur

water Level steam generator

Entrée libre / free Input

Mdg

Mvm

Mvg

Nbt

081

Mt1

091

Mpn

Cpn

Ydescal.

Yspray

Ycool

Ycond.

20 Yboiler

Mt2

+24 VDC

230 VAC

0 Vsys

+24 Vsys

24 VAC

X(-)

24V dc

75 W

24V dc

35 W

Fvb-s

120 V

+24 Vsys

0 Vsys

Ahu

Eclairage cavité / cavity Lighting

Electroaimant Clapet In / Air inlet valve Electromagnet

Pompe détartrage / descaling Pump

Pompe vidange mouffle / drain cavity Pump

Pompe vidange générateur / drain generator Pump

Connexion neutre / neutral Connection

Ventilation technique / technical Fan

Contacteur de puissance / power Contactor

Ventilation technique / technical Fan

Chauffe convection / convection Heating

Chauffe générateur vapeur / steam generator Heating

Pompe de lavage / cleaning Pump

Réserve / Reserved

EV douchette / spray hose SV

EV dissolution poudre / descaling powder SV

Réserve / Reserved

EV condenseur / condenser SV

EV refroidissement / cooling SV

EV générateur vapeur / steam generator SV

Connexion neutre / neutral Connection

G:\R&D\Projets NT NPD D ossiers\P NPD FM21 NXG GLOBAL COMBI\Readi ness Servi ces\Schém as électriques_Electrical diagrams\Capture 1.PNG

Shu

+24Vsys

0Vsys

Etat de cuisson en cours / cooking in progress Statut

(Contact libre de potentiel / free potential Contact)

Er1

Sr1

F6-6.3A

Contact porte / door Contact

Sonde à coeur / core Probe

Sonde temp. générateur vapeur

steam generator temperat. Probe

Sonde température ambiante

Ambient temperature Probe

EMC Filter

électroniques

electronic boards

Alimentation servitudes

Utilities supply

Alimentation cartes

Supply

Filtre CEM

Cavity lighting

Air inlet valve

Electromagnet

Descaling pump

Drain cavity pump

Drain generator

pump

Technical fan

Power contactor

Technical fan

Convection heating

Steam generator

heating

Cleaningh pump

Spray hose SV

Descaling powder SV

Condenser SV

Cooling SV

Steam generator SV

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 47 / 76

3VE490099EM – 10/25

Power diagram 6GN1/1 – 208V – 240V

Kr1

Rc1

Ftco - T4A

e s

Xm0

Fvb - T4A

e s

24/230Vac

Tco

230V

415VA

120V

Xtco

240V

480V

400V

120V

208V

Xm1

Ftmv-10A CC

e s

208V/240V 3

Kg1

Rg1-1

Kg2

Rg1-2

BK2

BK3

BK4

BK5

BK6

BK1

BK7

BK8

BK9

Heating element

Immersion heaters

Control transfromer

Power diagram 6GN1/1 – 480V

Heating element

Immersion heater

Control transformer

Cavity fan motor

transformer

Xtmv

240V

480V

400V

120V

208V

415VA

Xm0

Ftmv-10A CC

230V

Xtmv

480V 3

Ftco - T4A

e s

Fvb - T4A

e s

24/230Vac

Tco

230V

415VA

120V

Xtco

Tmv

Xm1

240V

480V

400V

120V

208V

Kr1

Rc1

Kg1

Rg1-1

Rg1-2

BK2

BK3

BK4

BK5

BK6

BK1

BK2

BK3

BK4

BK5

BK6

BK7

BK8

BK9

BK8

BK7

BK9

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 48 / 76

3VE490099EM – 10/25

Power diagram 6GN2/1 – 480V

240V

480V

400V

120V

208V

Xtmv

240V

480V

400V

120V

208V

828VA

Xm0

Ftmv-10A CC

e s

230V

Xtmv

480V 3

Kr1

Rc1-1

Rc1-2

Kg1

Rg1-1

Rg1-2

Ftco - T4A

Fvb - T4A

24/230Vac

Tco

230V

415VA

120V

Xtco

Tmv

Xm1

BK2

BK3

BK4

BK5

BK6

BK1

BK7

BK8

BK9

BK1

BK2

BK3

BK4

BK5

BK6

BK8

BK7

Heating elements

TImmersion heaters

Control transformer

Cavity fan motor

transformer

Power diagram 6GN2/1 and 10GN1/1 – 208V- 240V

Kg2

Rg1-2

Xm1

Ftmv-10A CC

e s

Ftco - T4A

e s

Xm0

Fvb - T4A

e s

24/230Vac

Tco

230V

415VA

120V

Xtco

240V

480V

400V

120V

208V

208 / 240V 3

Kr1

Rc1-1

Kg1

Rg1-1

Kr2

Rc1-2

BK2

BK3

BK4

BK5

BK6

BK1

BK7

BK8

BK9

Heating element

Immersion heater

Heating element

Immersion heater

Control transformer

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 49 / 76

3VE490099EM – 10/25

Power diagram 10GN1/1 – 480V

Heating elements

Immersion heaters

Control transformer

Cavity fan motor

transformer

Power diagram 10GN2/1 – 480V

Heating elements

Immersion heaters

Heating elements

Immersion heaters

Control transformer

Cavity fan motor

transformer

BK7

BK8

BK9

BK8

BK7

480V 3

Ftco - T4A

e s

Fvb - T4A

e s

24/230Vac

Tco

230V

415VA

120V

Xtco

Tmv

Xm1

240V

480V

400V

120V

208V

Xtmv

240V

480V

400V

120V

208V

415VA

Xm0

Ftmv-10A CC

230V

Xtmv

Kr1

Rc1-1

Rc1-2

Kg1

Rg1-1

Rg1-2

BK2

BK3

BK4

BK5

BK6

BK1

BK2

BK3

BK4

BK5

BK6

BK1

BK2

BK3

BK4

BK5

BK6

BK8

BK7

Kg2

Kr1

Kg1

Rc1-1

Rc1-2

Rg1-1

Rg1-2

Kr2

Rc2-1

Rc2-2

Rg2-1

Rg2-2

480V 3

Ftco - T4A

Fvb - T4A

24/230Vac

Tco

230V

415VA

120V

Xtco

Tmv

Xm1

240V

480V

400V

120V

208V

Xtmv

240V

480V

400V

120V

208V

828VA

Xm0

Ftmv-10A CC

e s

230V

Xtmv

BK2

BK3

BK4

BK5

BK6

BK1

BK7

BK8

BK9

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 50 / 76

3VE490099EM – 10/25

Power diagram 10GN2/1 – 208V- 240V

Rc2-2

Ftco - T4A

e s

Xm0

Fvb - T4A

e s

24/230Vac

Tco

230V

415VA

120V

Xtco

240V

480V

400V

120V

208V

208V/240V 3

Kr1

Kg1

Rc1-1

Rg1-1

Kg2

Kr2

Rg1-2

Rc1-2

Kr3

Rc2-1

Kg3

Rg2-1

Kg4

Rg2-2

Kr4

Ftmv-10A CC

e s

Xm1

BK2

BK3

BK4

BK5

BK6

BK1

BK7

BK8

BK9

Heating element

Immersion heater

Heating element

Immersion heater

Heating element

Control transformer

6.2 6 AND 10 LEVEL CAVITY VENTILATION

Cavity fan motor

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 51 / 76

3VE490099EM – 10/25

Black

Purple

Red

Blue

Brown

Orange

White

Half size

Motor

Full size

Motor

56 O

20.4 O

Values tolerence +/-15%

Half size

motor

Full size

motor

56 

20.4 

56 

20.4 

56 

20.4 

Values tolerances +/-15%

6.3 GREASE COLLECTION OPTION

Switching power supply

Grease pump

Pressure SwitchControls

valve opening/ Blocked

Circuit

+24 Vdc

option

collection de

graisse

Collection

grease option

24V dc

PEPE

MPG

Tc 75W

X(-)

Pressostat Contrôle

ouverture Vanne / circuit

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 52 / 76

3VE490099EM – 10/25

6.4 PARTS LIST

Common components

Ref.

Designation

Characteristics

Quantity

Code

Encoder board

309716

Ahu

Additional humidity board

309718

Interface board

309714

Ar+Ahu

Main + humidity boards

Electric oven

309720

Connection cable for Main – interface boards

309723

Ar+Ahu+Aag

Main + humidity + gas boards

Gas oven

309721

Ambient probe

PT100

159030

Steam generator temperature probe

PT100

159028

Bnc

Steam generator level probe

301514

Bnl

Cleaning box level probe

301519

Bsc

Core probe

3-point probe - 6- level GN 1/1 ovens

301517

3-point probe - 10-level GN 2/1 ovens

301518

Probe 3 points - 6 levels GN2/1 & 10 levels GN1/1

301524

Cpn

Cleaning pump condensator

6.3µF

304311

Cavity motor condensator

12,5µF - GN1/1 oven

304296

25µF - GN2/1 oven

304326

Ee1 - Ee2

LED strips

24Vd.c. 5W

309719

Fast fuse

5x20 - 0,2 A

300787

F2 - F3 - F4

Time-delay fuses

5x20 - 3,15A

309407

Standard automotive fuse

ATC - 4A

300807

Motor fuse

5x20 - 10A

300788

Ftco

Fuse holder and fuse

4A T

300777 + 300801

Ftmv

Fuse holder and fuse

10A CC

300792 + 300793

Fvb

Fuse holder and fuse

4A T

300777 + 300801

EMC filter

309639

Electromagnet of In flapper

24Vd.c. 8,3W

468108

Cavity fan motor

6 and 10 levels GN1/1

147147

6 and 10 levels GN2/1

159032

Mdg

Descaling pump motor

56W - Steam generator

304321

Mpg

Grease pump motor

24Vdc 31W

304314

Mpn

Cleaning pump motor

253W

314396

Mt1 – Mt2

Technical ventilation motor

304334

Mvg

Steam generator drain motor

56W

304323

Mvm

Cavity fan motor

56W

304322

Pressure switch

159064

Shu

Humidity sensor

301515

Closed door reed switch

Standard door

300806

Reversed door option (left-hand fitting)

300805

Switching power supply

230Va.c. / 24Vd.c.

300802

Switching power supply

230Va.c. / 24Vd.c.

308353

230Va.c. / 24Vd.c. if grease collection option

300802

Tco

Control transformer

415VA

408407

Tcm

Cavity fan motor transformer

6 and 10 levels GN1/1

408407

6 and 10 levels GN2/1

408406

Yspray - Ycond

Two-way solenoid valve

Spray / Condenser

468105

Ycool - Yboiler

- Ydescal.

Three-way solenoid valve

Descaling / Steam generator / Injection

468107

Contactors Electric ovens

208V/240V - 230V

Ref.

Designation

6 GN1/1

6 GN2/1

10 GN1/1

10 GN2/1

Steam generator contactor

300699 * 2

300699 * 4

Interference-suppression Blocks

300769 * 2

300769 * 4

Power contactor

300699

300702

300798

Interference-suppression Blocks

300769

407002

300799

Regulation contactor ( convection heater)

300699

300699 * 2

300699 * 4

Interference-suppression Blocks

300769

300769 * 2

300769 * 4

480V

Ref.

Designation

6 GN1/1

6 GN2/1

10 GN1/1

10 GN2/1

Steam generator contactor

300697

300698

300698 * 2

Interference-suppression Blocks

300769

300769 * 2

Power contactor

300697

300699

300698

300702

Interference-suppression Blocks

300769

407002

Regulation contactor ( convection heater)

300697

300699

300698

300699 * 2

Interference-suppression Blocks

300769

300769 * 2

6 - ELECTRIC DIAGRAMS

CHEF’SCOMBI

Page 53 / 76

3VE490099EM – 10/25

Contactors Gas ovens

Ref.

Designation

6 GN1/1

6 GN2/1

10 GN1/1

10 GN2/1

Kbg

Steam generator burner contactor

300697

Kbr

Burner regulation switch

300697

Power contactor

300697

Zp - Zvb - Zbg

Interference suppressor

300769

Heating elements Electric oven

Ref.

Designation

6 GN1/1

6 GN2/1

10 GN1/1

10 GN2/1

Convection heating elements

208V

Codes

159010

159012

159013

159012+159014

Vulcan codes

00-978295

00-978296

00-978308

00-978296+00-978298

240V

Codes

159005

159007

159008

159007+159009

Vulcan codes

00-978291

00-978292

00-978293

00-978292+00-978294

480V

Codes

159015

159017

159018

159017+159019

Vulcan codes

00-978299

00-978300

00-978301

00-978300+00-978302

Steam generator immersion

208V

Codes

159024

159025

159025 * 2

heaters

Vulcan codes

00-978305

00-978306

00-978306 * 2

240V

Codes

159022

159023

159023 * 2

Vulcan codes

00-978303

00-978304

00-978304 * 2

480V

Codes

159026

159027

159027 * 2

Vulcan codes

00-978305

00-978308

00-978308 * 2

Specific components - Gas ovens

Ref.

Designation

Characteristics

Quantity

Code

Aag

Additional gas board

309721

Avg

Steam generator gas solenoid valves

310356

Avr1

Gas solenoid valves regulation 1

310356

Eag

Steam generator gas spark box

prim:230Va.c. 0,3A /sec 1x15kV

408402

Ear

Gas spark box for convection heaters 1/2

prim:230Va.c. 0,3A /sec 1x15kV

1 or 2

408402

Ebg - Ebr

Curved ignition electrode

148885

Straight ionisation electrode

148886

Flamme

Flame control electrode

148889

Mbg

Steam generator burner motor

207VA

159046

Mbr

Burner motor regulation

207VA

159046

7 - HYDRAULIC DIAGRAM

CHEF’SCOMBI

Page 54 / 76

3VE490099EM – 10/25

7. HYDRAULIC DIAGRAM

7.1 6 AND 10 LEVEL OVENS

UNFILTERED WATER (hard water inlet)

FILTERED WATER (Soft water inlet)

Pressure (Min / Max)

14.5 psi / 87psi (1.5 bar / 6 bar)

Pressure (Min / Max)

14.5 psi / 87psi (1.5 bar / 6 bar)

Max cold water temperature

73°F

Max cold water temperature

73°F

Nature

Filtered at 114 mesh

Nature

Filtered at 114 mesh

Water quality

Chloride Cl-: ≤ 8.76 gr/gal (150 ppm)

Hardness

3.5 to 11.6 grains/gal (60 to 200 ppm)

Chlorine Cl2: ≤ 0.01 gr/gal (0.2 ppm)

Water quality

Chloride Cl-: ≤ 8.76 gr/gal (150 ppm)

6.5 ≤ PH ≤ 9

Chlorine Cl2: ≤ 0.01 gr/gal (0.2 ppm)

Conductivity

≥ 25 TDS

6.5 ≤ PH ≤ 9

Connection

Male G 3/4" + GHT 3/4" adapter

Conductivity

≥ 25 TDS

Max. instantaneous consumption

3.35 gpm

Connection

Male G 3/4" + GHT 3/4" adapter

Max. instantaneous consumption

2.03 gpm

TWO-WAY SOLENOID VALVE - COLD WATER

THREE-WAY SOLENOID VALVE - COLD WATER

Ycond

Condenser solenoid valve

42,8 gal/h

Yboiler

Solenoid valve for steam generator filling

87.1 gal/h

Yspray

Solenoid valve for spray hose

158,5 gal/h

Ycool

Cooling solenoid valve

14.4 gal/h

Ydescal.

Descaling solenoid valve

14.4 gal/h

PUMPS

PRESSURE SWITCH (GREASE COLLECTION OPTION)

P - 04

Clean

2061 gal/h

Pressure switch

0.3 bars

P - 03

Descaling

317 gal/h

P - 13

Drain

317 gal/h

P - 05

Drain steam generator

317 gal/h

P - 06

Grease

52,31 gal/h

7 - HYDRAULIC DIAGRAM

CHEF’SCOMBI

Page 55 / 76

3VE490099EM – 10/25

7.1.1 FLOW LIMITER

7.1.2 IDENTIFICATION OF TERMINALS

Two-way Solenoid valve

Condenser → Yellow

Spray hose → Clear - Transparent

Three-way Solenoid valve

Cooling → Blue

Steam generator → Pink - purple

Descaling → Grey

Two-way Solenoid valve

Three-way Solenoid valve

Two-way Solenoid valve

Black

42,8 gal/h

Blue

87.1 gal/h

White

14.4 gal/h

White

14.4 gal/h

158,5 gal/h

Ycond.

Yspray

Yboiler

Ycool

Ydescal.

8 - GAS DIAGRAM

CHEF’SCOMBI

Page 56 / 76

3VE490099EM – 10/25

8. GAS DIAGRAM

8.1 6 AND 10 LEVEL OVENS

Gas circuit - Convection heating

Heat exchanger

Gas exchanger outlet gasket

Flue gas pipe

Gas exchanger inlet gasket

Gas burner

Ignition electrodes

Gas burner gasket

Gas burner reducer

Gas burner blower

Gas venturi seal

Venturi

Gasket 20/27

Injector (present depending on model)

Gas pipework

Gas valve

Safety box

Venturi adapter

Air inlet hose

Flexible air plug

Gas ramp

3/4" NPT gas inlet adaptor

Gas circuit - Steam heating

Gas steam generator

Steam generator inlet gasket

Gas burner

Ignition electrodes

Gas fan gasket

Gas burner reducer

Gas burner blower

Gas venturi seal

Venturi

Gasket 20/27

Injector (present depending on model)

Gas pipework

Gas valve

Safety box

Venturi adapter

Air inlet hose

Flexible air plug

9 - ACCESS TO COMPONENTS

CHEF’SCOMBI

Page 57 / 76

3VE490099EM – 10/25

9. ACCESS TO COMPONENTS

9.1 LOCATION OF TECHNICAL COMPONENTS

9.2 ACCESS TO COMPONENTS

CAUTION: The appliance must be disconnected from its power supply during cleaning or

maintenance, and when replacing parts.

The various assembly procedures and component access below are designed to avoid any repetition which could lead to errors when improving the

procedures.

Actions already explained in a paragraph are not re-explained but are referred to in the paragraph originally concerned, using the symbol « ► »

followed by the title of the paragraph where the procedure can be found.

9.2.1 LEFT-HAND SIDE PANEL

» Prepare your intervention:

✓ Tools: Wrenches.

» Unscrew and remove the 2 x M5 screws securing the underside of the panel .

» Remove the panel: Unhook the bottom of the panel and lower it to remove .

On the side of the appliance

- Interface board

- Encoder

- Drain box

- Main board

- Humidity sensor

- Temperature probe

- Cooking cavity probe

- In damper motor

- Contactors …

At the rear of the appliance

- Solenoid valve

- Steam generator

- Gas burner, Exchanger

- Grease collection pump

Behind the ventilation duct

- Elements

- Turbines

- Motor shaft gasket

- Gas exchanger…

In the door

- LED strip

- Closing mechanism

- Inner glass

Under the oven

- Spray hose retractor

- Cleaning box

9 - ACCESS TO COMPONENTS

CHEF’SCOMBI

Page 58 / 76

3VE490099EM – 10/25

9.2.2 REAR PANEL (GAS APPLIANCE)

» Prepare your intervention:

✓ Tools: Wrenches.

» Remove the left oven panel (►Left side panel).

» Unscrew and remove the 2 x M5 screws securing the panel at the top and bottom  and then the

3 x M5 screws securing the left-hand side of the half-panel.

» Remove the half-panel: Unhook bottom of the half-panel then lower it to remove .

9.2.3 REAR HATCH (GREASE COLLECTION OPTION)

» Prepare your intervention:

✓ Tools: Wrenches.

» Unscrew and remove the 4 x M5 screws securing the hatch cover to the rear panel.

» Remove the hatch cover.

9.2.4 RUNNERS

» Prepare the cooking cavity and check the following points:

✓ Remove all trays, plates and grids from the cooking cavity

✓ Verify the core probe has been removed from its housing

9 - ACCESS TO COMPONENTS

CHEF’SCOMBI

Page 59 / 76

3VE490099EM – 10/25

✓ Verify the USB core probe is not in the cooking cavity

» Lift the runner slightly by the middle of one of the upper levels .

» Tilt the runner towards the centre of the oven to release it from its lower supports (rear and front) .

» Release the runner from its upper supports (front and rear) .

» Remove the runner from cooking cavity .

9.2.5 VENTILATION DUCT

» Prepare the cooking cavity and check the following points:

✓ Remove all trays, plates and grids from the cooking cavity

✓ Verify the core probe has been removed from its housing

✓ Verify the USB core probe is not in the cooking cavity

✓ Protect bottom of the cavity with board

» Remove left-hand runner (►Runners).

» Lift the duct slightly .

» Tilt the duct to release it from its lower supports (rear and front) .

» Release the duct from its upper supports (front and rear) .

» Remove the duct from the cooking cavity.

9.2.6 MAINTENANCE POSITION OF THE MAIN BOARD

» Prepare your intervention:

✓ Tools: Wrenches

» Remove the left oven panel (►Left side panel).

» Slightly unscrew the screw securing the board to the electrical board .

» Lift up and remove the main board .

» Position the board in the 2 notches provided during maintenance operations .

10 - COMPONENTS

CHEF’SCOMBI

Page 60 / 76

3VE490099EM – 10/25

10. COMPONENTS

10.1 ELECTRONIC BOARDS

10.1.1 MAIN BOARD - AR

Fuse

Ref.*

Function

Caliber

Size

Ventilation motor protection

10A Time-delay

5x20

Solenoid valve protection

0,2A Fast

5x20

Wash pump solenoid valve protection

3,15A Fast

5x20

Protection of Heating, technical ventilation and gas board power supply

3,15A Fast

5x20

Pump protection

3,15A Fast

5x20

24Vdc service protection

4A Fast

ATC

Potential-free contact protection (hood)

6,3A Fast

5x20

* References on electrical diagrams.

Connectors

Nber of

terminals

Color of wires

Destination

Function of the destination elements

Measurements

Orange

BnL

Checks the water level in the cleaning box

Earth

Orange

BnC

Checks the water level in the steam generator

Earth

Red

Bga

Measures steam generator temperature

(safety input)

Value between 100 Ohms (35°F)

and 212 Ohms (572°F)

Red

Bga

White

Bgn

Measures steam generator temperature

(control input)

Value between 100 Ohms (35°F)

and 212 Ohms (572°F)

White

Bgn

Red

Baa

Measures cavity temperature (safety input)

Value between 100 Ohms (35°F)

and 212 Ohms (572°F)

Red

Baa

White

Ban

Measures the ambient temperature of the

cavity (control input)

Value between 100 Ohms (35°F)

and 212 Ohms (572°F)

White

Ban

Brown

Grease collection pressure switch option

Normally closed contact

Blue

Brown

Control the closing of the door

Blue

Black

PT100Bsc3

Value between 100 Ohms (35°F)

and 212 Ohms (572°F)

Take these mesures between

Yellow wire and each other wire

Red

PT100Bsc2

Food temperature control (3 levels)

White

PT100Bsc1

Yellow

Bsc com.

J12

Red

S03

Supplies the pump for the grease collection

option

24Vd.c. with Tc-

Red

S02

Supplies the In valve or the In valve contactor

(20-level ovens only)

24Vd.c. with Tc-

Red

S110

Supplies power to the LED lightning on the

oven door (20-level ovens only)

24Vd.c. with Tc-

Red

S01

Supplies power to the LED lightning on the

oven door

24Vd.c. with Tc-

Black

0Vd.c.

Not connected

10 - COMPONENTS

CHEF’SCOMBI

Page 61 / 76

3VE490099EM – 10/25

Red

24Vd.c.

External power supply 24Vd.c. from Tc+

24Vd.c. with Tc-

J14

Purple

24/230Vac

supplies the 120Va.c pump.

120Vac with Nbt

Blue

Nbt

common pump supply 120Va.c.( neutral)

120Vac with 24/230Vac

Purple

Mdg - S06

activates the descaling pump 120Vac

120Vac with Nbt

Brown

Mvm - S05

activates the 120Vac cavity drain pump

120Vac with Nbt

Pink

Mvg - S04

activates the steam generator drain pump

120Vac

120Vac with Nbt

J15

Blue

Neutral

Supplies the 230Vac outputs

230Va.c. between these two

points

Purple

230Vac

J16

Brown

Chauf Vap-

S12

In an electric oven, activate the Kg steam

generator heating contactor(s)

230Va.c. with neutral

Red

In a gas oven, activates the steam generator

burner

Red

Chauf 2-S11

Not used in an electric oven

In a gas oven, activates the heating burner

(only 20 level oven)

230Va.c. with neutral

Pink

Chauf 1-S10

In an electric oven, activate the Kr (green)

control contactor(s)

230Va.c. with neutral

Red

In a gas oven, activate the heating burner

Orange

S081

In a gas oven, supplies the gas solenoid

valves

230Va.c. with neutral

Orange

Mtv1 - S08

Activates technical ventilation

230Va.c. with neutral

Purple

Mtv1 - S08

Activates technical ventilation

230Va.c. with neutral

Brown

Aag 230V - S07

Not used in electric ovens

Supplies the gas card of gas ovens

230Va.c. with neutral

Purple

XeA-S091

Controls the energy saver (electric oven)

Controls the second technical ventilation

230Va.c. with neutral

W1- 3

Controls the rotation speed of the hood

Purple

S09

Activates the power contactor(s) Kp

230Va.c. with neutral

J18

Red

+24VSyst

24Vd.c. power supply for Main board

24Vd.c. between 1 and 2

Black

0VSyst

J19

Reserve

S17

Reserved

Brown

Ydescal. - S16

Activates the powder dissolution solenoid valve

230Va.c. with neutral

Pink

Yspray - S15

Activates the spray hose solenoid valve

230Va.c. with neutral

Brown

S14

Activate the motor Air inlet contactor (20

levels ovens only)

230Va.c. with neutral

Purple

Cleaning pump

– S13

Activates the cleaning pump

230Va.c. with neutral

J21

Pink

Yboiler- S20

Activates the injection solenoid valve

230Va.c. with neutral

Brown

Ycool - S19

Activates the cooling solenoid valve

230Va.c. with neutral

Pink

Ycond. - S18

Activates the condenser solenoid valve

230Va.c. with neutral

J22

Black

S23

Activates clockwise motor rotation

208Va.c. with Xm0 for 208Va.c. oven

240Va.c. with Xm0 for 240Va.c. oven

230Va.c. with Xm0 for 480Va.c. oven

Red

S22

Activates anticlockwise motor rotation

208Va.c. with Xm0 for 208Va.c. oven

240Va.c. with Xm0 for 240Va.c. oven

230Va.c. with Xm0 for 480Va.c. oven

Black

E21

Supplies power to the motor

208Va.c. with Xm0 for 208Va.c. oven

240Va.c. with Xm0 for 240Va.c. oven

230Va.c. with Xm0 for 480Va.c. oven

W1-2

Sr1

Potential-free contact for hood motor control

Closed when the oven is operating

W1-1

Er1

10 - COMPONENTS

CHEF’SCOMBI

Page 62 / 76

3VE490099EM – 10/25

10.1.2 HUMIDITY BOARD - AHU

Fuse

Ref.*

Function

Caliber

Size

Protect Humidity board

3.15A

5X20

* References on electrical diagrams.

Connectors

Nber of

terminals

Color of wires

Destination

Function of the destination elements

Measurements

Red

Ahu/+

Humidity board power supply

24Vdc between these two points

Black

Ahu/-

Black

Ah Blk

Violet

Ah Pure

Grey

Ah Gre

Supply humidity probe, heater unit and probe

White

AhWhi

feedback

Orange

Ah Yel

Red

Ah Red

10.1.3 GAS BOARD - AAG

Connectors

Nber of

terminals

Color of wires

Destination

Function of the destination elements

Measurements

Black

GND/Alim- PWM

Pink

S1P/PWM input

Convection heat burner fan control

Orange

S1H/PWM Hall probe output

Red

+24Vdc/Alim+PWM

Black

GND/Alim- PWM

Pink

S2P/PWM input

Convection heat burner fan control

only 20 levels

Orange

S2H/PWM Hall probe output

Red

+24Vdc/Alim+PWM

10 - COMPONENTS

CHEF’SCOMBI

Page 63 / 76

3VE490099EM – 10/25

Black

GND/Alim- PWM

Pink

S1P/PWM input

Steam generator burner fan control

Orange

S1H/PWM Hall probe output

Red

+24Vdc/Alim+PWM

Blue

Neutral

Grey

Secu3

Red

Secu 12

Flame and safety burner check

Flame control feedback at

230Va.c.

Brown

Pf3

Purple

Pf2

Purple

Pf1

Brown

230Vac

230Va.c. between 230Va.c. and

Brown

AL3

Burner ignition control

Purple

AL12

10.1.4 INTERFACE BOARD - AI

Connectors

Nber of

terminals

Connectors type

Destination

Function of the destination elements

Measurements

4-pin Molex connector

Not used

4-pin Molex connector

Connects to the Main board

USB connector

Connects the WIFI Dongle (Kit)

RJ45

Ensures customer network connection for connectivity

10-way ribbon connector

1.27mm pitch AWG28

Connects coder board to interface board

USB connector

Connects front USB socket

10.1.5 CODER

Connectors

Nber of

terminals

Connectors type

Destination

Function of the destination elements

Measurements

10-way ribbon cable

1.27mm pitch AWG 28

Connects coder board to the interface board

10 - COMPONENTS

CHEF’SCOMBI

Page 64 / 76

3VE490099EM – 10/25

10.2 ELECTRIC BOARDS

Electric ovens

Gas ovens

Electric ovens

Item

Ref.*

Description

Functions

EMC filter

Limits electromagnetic interference

Switching power supply

Supplies 24Vdc to services (lighting, In valve solenoid, grease gun)

Lighting terminal block

Connects LED strips for oven lighting

Switching power supply

Supplies 24Vdc to the Main board

Terminal block (Xa, Xb, X+, X-, Xm0, Xm1)

Connects the various power supplies

Convection heat control contactor

Supplies the heating elements with convection heat

Steam generator heating contactor

Supplies steam generator immersion heaters

Power contactor

Controls power to the oven

Cvm

Cooling fan

Starts the cooling fan

Cpl

Wash pump capacitor

Starts the wash pump

Xmv

Fan motor connector

Connects the fan motor to the board

Xpl

Wash pump connector

Connects the wash pump to the board

* References on electrical diagrams.

Gas ovens

Item

Ref.*

Description

Functions

EMC filter

Limits electromagnetic interference

Switching power supply

Supplies 24Vdc to services (lighting, In valve solenoid, grease gun)

Xth

Lighting terminal block

Connects LED strips for oven lighting

Switching power supply

Supplies 24Vdc to the Main board

Terminal block (Xa, Xb, X+, X-, Xm0, Xm1)

Connects the various power supplies

Protections (Ftco, Ftvb, Ftmv)

Protects the transformer and fan motor outputs (US model only)

Convection heating control switch

Controls the convection heater burner control board (1 or 2 depending

on the oven model)

Steam generator contactor

Controls the steam burner regulation board

Power contactor

Controls power to the oven

Cavity fan capacitor

Starts the cavity ventilation motor

Ear

Convection heating ignition transformer

Ignites the convection burner electrode (1 or 2 depending on the oven

model)

Eag

Steam generator ignition transformer

Ignites the steam generator burner electrode

Cpn

Wash pump capacitor

Starts the wash pump

Fan motor connector

Connects the fan motor to the board

Xpn

Wash pump connector

Connects the wash pump to the board

* References on electrical diagrams.

10 - COMPONENTS

CHEF’SCOMBI

Page 65 / 76

3VE490099EM – 10/25

10.3 OTHER COMPONENTS

10.3.1 ELECTRIC OVENS

Item

Ref.*

Description

Functions

Tco

Control auto transformer

(On certain models only) Ensures that customer voltage can be

matched to oven operating voltages

Interface board

Human-machine interface

Encoder board

Human-machine interface

Main board

Control all oven components

Electrical board

Provides the link between Main board commands and the

functions of external components

Descaling box

Contains descaling powder

Mt1-2

Technical fan

Ensure forced ventilation of the technical compartment

Spray hose reel

Contains spray hose reel

Mdg

Steam generator descaling pump

Ensures circulation of steam generator descaling agent

Shu

Humidity sensor

Humidity control

Cavity fan motor

Ensures turbine rotation

Air inlet valve

Controls air inlet valve movements

Convection heating elements

Heats the inside of the cavity (several depending on model)

Mvg

Steam generator drain pump

Drain water from steam generator

Mpn

Cleaning pump

Ensures water circulation during cleaning phases

Mvm

Cavity drain pump

Ensures the draining of liquid elements contained in the cavity

Bnl

Clean box water level probe

Controls water level in clean box

Power terminal block

Allows the oven to be connected to the customer's electrical

network

Rg + Bg

Steam generator immersion heater + Temperature

probe

Heats the water contained in the steam generator, the sensor

controls the water temperature in the steam generator (safety and

regulation circuits).

Bnc

Steam generator water level probe

Controls water level in steam generator

Steam generator

Produce steam

Ycool - Yboiler

- Ydescal.

Triple solenoid valve

Controls filtered water supply cooling, steam generator filling and

descaling

Yspray - Ycond

Double solenoid valve

Controls unfiltered water inlet for spray hose and condenser

Clean box

Collects liquid elements contained in the cavity

Tmv

Cavity fan motor autotransformer

(On some models only) Adapts customer voltage to the voltage

used by the cavity fan motor

USB socket

Allows connection of a USB key for updates, backups, etc.

Spray hose

Cleans the oven

Cavity temperature probe

Controls oven cavity temperature (safety circuits and regulation)

Fan

For even heat distribution

Bsc

3-point food core probe

Allows food temperature to be taken

Ee1 – Ee2

LED strips

Provide interior oven lighting (number depends on model)

Grease collection option

Pressure switch

Check no over pressure in the circuit.

Mpg

Grease pump

Drain grease from the cavity.

*References on electrical diagrams.

10 - COMPONENTS

CHEF’SCOMBI

Page 66 / 76

3VE490099EM – 10/25

10.3.2 GAS OVENS

Item

Ref.*

Description

Functions

Tco

Control auto transformer

(On certain models only) Ensures that customer voltage can be

matched to oven operating voltages

Interface board

Human-machine interface

Encoder board

Human-machine interface

Main board

Controls all oven components

Descaling box

Contains descaling powder

Mt1

Technical fan

Ensures forced ventilation of the technical compartment

Spray hose reel

Contains spray hose reel

Mdg

Steam generator descaling pump

Ensures circulation of steam generator descaling agent

Shu

Humidity sensor

Humidity control

Electrical board

Provides the link between Main board commands and the

functions of external components

Cavity fan motor

Ensures turbine rotation

Air inlet valve

Controls air inlet valve movements

Mbr

Convection-heating burner motor

Supplies oxygen to the flame

Mbg

Steam generator burner motor

Supplies oxygen to the flame

Avr-1

Connection box of solenoid valve for convection

gas heating

Controls the solenoid valve for the gas supply to the convection-

heating burner

Mpn

Cleaning pump

Ensures water circulation during cleaning phases

Mvm

Cavity drain pump

Ensures the draining of liquid elements contained in the cavity

Bnl

Clean box water level probe

Controls water level in clean box

Avg

Connection box of solenoid valve for steam

generator gas control

Controls the solenoid valve of the gas supply to the steam

generator burner

Power terminal block

Allows the oven to be connected to the customer's electrical

network

Ycool - Yboiler -

Ydescal.

Triple solenoid valve

Controls filtered water supply cooling, steam generator filling and

descaling

Yspray - Ycond

Double solenoid valve

Controls infiltered water inlet for spray hose and condenser

Clean box

Collects liquid elements contained in the cavity

Mvg

Steam generator drain pump

Drain water from steam generator

Steam generator temperature probe

Controls temperature of the water in the steam generator (safety

circuit and regulation)

Bnc

Steam generator level probe

Controls water level in steam generator

Steam generator

Produce steam

Tmv

Cavity fan motor autotransformer

(On some models only) Adapts customer voltage to the voltage

used by the cavity fan motor

USB socket

Allows connection of a USB key for updates, backups, etc.

Spray hose

Cleans the oven

Cavity temperature probe

Controls oven cavity temperature (safety circuit and regulation)

Fan

For even heat distribution

Gas exchanger

Heats the oven interior

Bsc

3-point food core probe

Allows food temperature to be taken

Ee1, Ee2

LED strips

Provide interior oven lighting (number depends on model)

Grease collection option

Pressure switch

Check no over pressure in the circuit.

Mpg

Grease pump

Drain grease from the cavity.

*References on electrical diagrams.

11 - RECOMMENDED AND EMERGENCY SPARE PARTS

CHEF’SCOMBI

Page 67 / 76

3VE490099EM – 10/25

11. RECOMMENDED AND EMERGENCY SPARE PARTS

Code

Vulcan Code

Description

Vulcan CHEF-102E Electric Combi Oven

Product's Documents

Maintenancemanual

Specifications

Vulcan CHEF-102E Questions and Answers

Related Products

Vulcan ABC7E-240P Full Size Electric Combi Oven with Dials Buttons Controls

Vulcan ABC7E-240P Full Size Electric Combi Oven with Dials Buttons Controls

Vulcan TCM-101G-NAT/LP Half Size Natural Gas Combi Oven with Touchscreen Controls

Vulcan TCM-102G-NAT/LP Full Size Natural Gas Combi Oven with Touchscreen Controls

BLODGETT BX-14E DBL SizeElectric Combi Oven with Controls

Electrolux 219704 Professional Full Size Natural Gas Combi Oven with Touchscreen Controls