Models
F-300BAJ
F-500BAJ
Self-Contained Flaker
Instruction Manual
Issued: 12/12/2016
Revised: 8/15/2023
hoshizakiamerica.com
2
WARNING
Only qualied service technicians should install and service the appliance. To
obtain the name and phone number of your local Hoshizaki Certied Service
Representative, visit www.hoshizaki.com. No installation or service should be
undertaken until the technician has thoroughly read this Instruction Manual.
Likewise, the owner/manager should not proceed to operate the appliance until the
installer has instructed them on its proper operation. Failure to install, operate, and
maintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly water
damage. Proper installation is the responsibility of the installer. Product failure or
property damage due to improper installation is not covered under warranty.
Hoshizaki provides this manual primarily to assist qualied service technicians in the
installation, maintenance, and service of the appliance.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, send an e-mail message, or write to the Hoshizaki Technical
Support Department for assistance.
Phone: 1-800-233-1940; (770) 487-2331
Fax: 1-800-843-1056; (770) 487-3360
E-mail: techsuppor[email protected]
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.
3
CONTENTS
Important Safety Information ................................................................................................. 4
I. Specications ...................................................................................................................... 7
A. Electrical and Refrigerant Data ..................................................................................... 7
1. F-300BAJ ................................................................................................................. 7
2. F-500BAJ ................................................................................................................. 7
B. Dimensions/Connections .............................................................................................. 8
1. F-300BAJ ................................................................................................................. 8
2. F-500BAJ ................................................................................................................. 9
II. Installation and Operating Instructions ............................................................................ 10
A. Location ...................................................................................................................... 10
B. Checks Before Installation ........................................................................................... 10
C. How to Remove Panels ...............................................................................................11
D. Setup ............................................................................................................................11
E. Electrical Connection .................................................................................................. 12
F. Water Supply and Drain Connections .......................................................................... 14
G. Final Checklist ............................................................................................................ 16
1. Pre-Startup ............................................................................................................. 16
2. Post-Startup ........................................................................................................... 17
H. Startup ........................................................................................................................ 18
I. Bin Control Check ......................................................................................................... 19
J. Alarm Safeties .............................................................................................................. 21
III. Maintenance ................................................................................................................... 22
A. Maintenance Schedule ................................................................................................ 23
B. Cleaning and Sanitizing Instructions ........................................................................... 24
IV. Preparing the Appliance for Periods of Non-Use ............................................................ 28
V. Disposal ........................................................................................................................... 29
IMPORTANT
This manual should be read carefully before the appliance is installed and operated.
Read the warnings and guidelines contained in this manual carefully as they
provide essential information for the continued safe use and maintenance of the
appliance. Retain this manual for any further reference that may be necessary.
4
Important Safety Information
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, damage to the appliance, or damage to property.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
NOTICE Indicates a situation which could result in damage to the
appliance or property.
IMPORTANT Indicates important information about the installation, use, and
care of the appliance.
WARNING
The appliance should be destined only to the use for which it has been expressly
conceived. Any other use should be considered improper and therefore dangerous.
The manufacturer cannot be held responsible for injury or damage resulting
from improper, incorrect, and unreasonable use. Failure to install, operate, and
maintain the appliance in accordance with this manual will adversely affect safety,
performance, component life, and warranty coverage and may result in costly
water damage.
To reduce the risk of death, electric shock, serious injury, or re, follow basic
precautions including the following:
• Only qualied service technicians should install and service the appliance.
• The appliance must be installed in accordance with applicable national, state, and
local codes and regulations.
• Electrical connection must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could result in death,
electric shock, serious injury, re, or damage.
• The appliance requires an independent power supply of proper capacity. See
the nameplate for electrical specications. Failure to use an independent power
supply of proper capacity can result in a tripped breaker, blown fuse, damage to
existing wiring, or component failure. This could lead to heat generation or re.
• THE APPLIANCE MUST BE GROUNDED: Failure to properly ground the
appliance may result in death, electric shock, or re.
• To reduce the risk of electric shock, do not touch the power switch, control switch,
or plug (on corded models) with damp hands.
5
WARNING, continued
For Corded Models
• This appliance is equipped with a NEMA5-15 three-prong grounding plug to
reduce the risk of potential shock hazards. Corded models must be plugged into
a properly grounded, independent 3-prong wall outlet. Ifthe outlet is a 2-prong
outlet, it is your personal responsibility to have a qualied electrician replace it
with a properly grounded, independent 3-prong wall outlet. Do not remove the
ground prong from the plug and do not use an adapter plug. Failure to follow these
instructions may result in death, electric shock, or re.
• Before servicing, move the power switch to the "OFF" position. Unplug the
appliance from the electrical outlet.
• Do not use an extension cord.
• Do not use an appliance with a damaged power cord. The power cord should not
be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions
could result in electric shock or re. To unplug the appliance, be sure to pull the
plug, not the cord, and do not jerk the cord.
• The GREEN ground wire in the factory-installed power cord is connected to the
appliance. If it becomes necessary to remove or replace the power cord, be sure to
connect the power cord's ground wire.
For Hard-Wired Models
• Electrical connection must be hard-wired.
• Before servicing, move the power switch to the "OFF" position. Turn off the power
supply. Lockout/Tagout to prevent the power supply from being turned back on
inadvertently.
For All Models
• Do not splash, pour, or spray water directly onto or into the appliance. This might
cause short circuit, electric shock, corrosion, or failure.
• Do not make any alterations to the appliance. Alterations could result in electric
shock, injury, re, or damage to the appliance.
• Do not place ngers or any other objects into the ice discharge opening.
• The appliance is not intended for use by persons (including children) with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
• Children should be properly supervised around the appliance.
• Do not climb, stand, or hang on the appliance or appliance door or allow children or
animals to do so. Serious injury could occur or the appliance could be damaged.
• Be careful not to pinch ngers when opening and closing the door. Be careful when
opening and closing the door when children are in the area.
6
WARNING, continued
• Do not use combustible spray or place volatile or ammable substances near the
appliance. They might catch re.
• Keep the area around the appliance clean. Dirt, dust, or insects in the appliance
could cause harm to individuals or damage to the appliance.
• Do not place anything on top of the appliance. Foreign objects or moisture could
enter the appliance and result in electric shock or re.
NOTICE
• Protect the oor when moving the appliance to prevent damage to the oor.
• Follow the water supply, drain connection, and maintenance instructions carefully
to reduce the risk of costly water damage.
• In areas where water damage is a concern, install in a contained area with a oor
drain.
• Install the appliance in a location that stays above freezing. Normal operating
ambient temperature must be within 45°F to 100°F (7°C to 38°C).
• If water collects in the bin and will not drain, turn off the appliance and close the
water supply line shut-off valve. Call for service.
• Do not leave the appliance on during extended periods of non-use, extended
absences, or in sub-freezing temperatures. To properly prepare the appliance for
these occasions, follow the instructions in "IV. Preparing the Appliance for Periods
of Non-Use."
• Keep ventilation openings, in the appliance enclosure or in the built-in structure,
clear of obstruction.
• Do not place objects on top of the appliance.
• The storage bin is for ice use only. Do not store anything else in the storage bin.
7
I. Specications
A. Electrical and Refrigerant Data
The rating label and nameplate provide electrical and refrigerant data. The rating label
can be seen by removing the front panel. The nameplate is located on the rear panel.
For certication marks, see the nameplate.
We reserve the right to make changes in specications and design without prior notice.
1. F-300BAJ
Model Number F-300BAJ
AC Supply Voltage 115/60/1
Amperes 7.8 AMPS
Design Pressure HI-467PSI LO-250PSI
Refrigerant 404A 9.17 OZ.
2. F-500BAJ
Model Number F-500BAJ
AC Supply Voltage 115/60/1
Compressor 115V 10.5RLA 54.5LRA
Gear Motor 115V 2.4FLA 1/4 HP
Fan 115V 0.85A MAX
Other 115V 0.08A
Maximum Fuse Size 20 AMPS
Max. HACR Circuit Breaker (USA only) 20 AMPS
Max. Circuit Breaker (Canada only) 20 AMPS
Minimum Circuit Ampacity 20 AMPS
Design Pressure HI-467PSI LO-250PSI
Refrigerant 404A 1 LB. 0.6 OZ.
8
B. Dimensions/Connections
1. F-300BAJ
Unit: mm [in.]
SideFront
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24" (61 cm)
clearance at top to allow for removal of
the auger.
Rear
9
2. F-500BAJ
Unit: mm [in.]
NOTICE
Allow 6" (15 cm) clearance at rear and
sides for proper air circulation and ease
of maintenance and/or service should
they be required. Allow 24" (61 cm)
clearance at top to allow for removal of
the auger.
Side
Rear
Front
10
II. Installation and Operating Instructions
WARNING
• The appliance must be installed in accordance with applicable national, state, and
local codes and regulations.
• Failure to install, operate, and maintain the appliance in accordance with this
manual will adversely affect safety, performance, component life, and warranty
coverage and may result in costly water damage.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after installation. Make sure that none have fallen into the ice
storage bin.
A. Location
NOTICE
• The appliance is not intended for outdoor use. Normal operating ambient
temperature must be within 45°F to 100°F (7°C to 38°C); Normal operating
water temperature must be within 45°F to 90°F (7°C to 32°C). Operation of the
appliance, for extended periods, outside of these normal temperature ranges
may affect appliance performance.
• The appliance will not work at sub-freezing temperatures. To prevent damage
to the water supply line, drain the appliance if the air temperature is going to go
below 32°F (0°C). See "IV. Preparing the Appliance for Periods of Non-Use."
• Appliance should not be located next to ovens, grills, or other high heat producing
equipment.
• Allow 6" (15 cm) clearance at rear and sides for proper air circulation and ease of
maintenance and /or service should they be required. Allow 24" (61 cm) clearance at top
to allow for removal of the auger.
• The location should provide a rm and level foundation for the appliance.
B. Checks Before Installation
• Visually inspect the exterior of the shipping container and immediately report any damage
to the carrier. Upon opening the container, any concealed damage should also be
immediately reported to the carrier.
• Remove the shipping carton, tape, and packing material. If any are left in the appliance, it
will not work properly.
• See the nameplate on the rear panel, and check that your voltage supplied corresponds
with the voltage specied on the nameplate.
• Remove the package containing the accessories.
• Remove the protective plastic lm from the panels. If the appliance is exposed to the sun
or to heat, remove the lm after the appliance cools.
11
C. How to Remove Panels
See Fig. 1
• Top Panel: Remove the screws. Lift up at the front slightly, push rearward, and lift off.
• Front Panel: Remove the screws. Lift up and pull towards you.
Top Panel
Storage Bin
Sliding Door
Front Panel
Fig. 1
D. Setup
1) See Fig. 2. Attach four 6" adjustable legs provided to the bottom of the appliance.
2) Position the appliance in the selected permanent location.
3) Level the appliance from side-to-side and front-to-rear by adjusting the legs.
Fig. 2
Model Shown: F-500BAJ
Model Shown: F-500BAJ
12
E. Electrical Connection
WARNING
• Electrical connection must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could result in death,
electric shock, serious injury, re, or damage.
• The appliance requires an independent power supply of proper capacity. See
the nameplate for electrical specications. Failure to use an independent power
supply of proper capacity can result in a tripped breaker, blown fuse, damage to
existing wiring, or component failure. This could lead to heat generation or re.
• THE APPLIANCE MUST BE GROUNDED: Failure to properly ground the
appliance may result in death, electric shock, or re.
• To reduce the risk of electric shock, do not touch the power switch, control switch,
or plug (on corded models) with damp hands.
• For Corded Models
• This appliance is equipped with a NEMA5-15 three-prong grounding plug to
reduce the risk of potential shock hazards. Corded models must be plugged into
a properly grounded, independent 3-prong wall outlet. Ifthe outlet is a 2-prong
outlet, it is your personal responsibility to have a qualied electrician replace it
with a properly grounded, independent 3-prong wall outlet. Do not remove the
ground prong from the plug and do not use an adapter plug. Failure to follow these
instructions may result in death, electric shock, or re.
• Do not use an extension cord.
• Make sure the power switch is in the "OFF" position before plugging in or
unplugging the appliance to reduce the risk of electric shock.
• Do not use an appliance with a damaged power cord. The power cord should not
be altered, jerked, bundled, weighed down, pinched, or tangled. Such actions could
result in electric shock or re. To unplug the appliance, be sure to pull the plug, not
the cord, and do not jerk the cord.
• The GREEN ground wire in the factory-installed power cord is connected to the
appliance. If it becomes necessary to remove or replace the power cord, be sure to
connect the power cord's ground wire to this screw upon reattachment.
• For Hard-Wired Models
• Electrical connection must be hard-wired.
• Electrical connections must be made in accordance with the instructions on the
"WARNING" tag, provided with the pig tail leads on the junction box. See Fig. 3.
• Usually an electrical permit and services of a licensed electrician are required.
• The maximum allowable voltage variation is ±10 percent of the nameplate rating.
13
Fig. 3
115/60/1
WARNING
ELECTRICAL CONNECTION
THIS UNIT MUST BE GROUNDED
Failure to properly ground or wire
this unit could result in death,
serious injury, or severe damage
to the icemaker. The white lead
must be connected to the neutral
conductor of the power source.
See diagram below.
4A5730-010
JUNCTION BOX
1
15V
BLACK
WHITE
L
N
F-500BAJ
For Hard-Wired Models
• The opening for the power supply connection is 7/8" DIA to t a 1/2" trade size conduit.
• The white lead must be connected to the neutral conductor of the power source.
NOTICE! Miswiring may result in damage to the icemaker.
14
F. Water Supply and Drain Connections
See Fig. 4 and Fig. 5
WARNING
Water supply and drain connections must be installed in accordance with applicable
national, state, and local regulations.
NOTICE
• Normal operating water temperature must be within 45°F to 90°F (7°C to
32°C). Operation of the appliance, for extended periods, outside of this normal
temperature range may affect appliance performance.
• Water supply pressure must be a minimum of 10 PSIG and a maximum of
113PSIG. If the pressure exceeds 113 PSIG, the use of a pressure reducing valve
is required.
• External lters, strainers, or softeners may be required depending on water quality.
Contact your local Hoshizaki Certied Service Representative or local Hoshizaki
distributor for recommendations.
• A plumbing permit and services of a licensed plumber may be required in some areas.
• Drain lines must have 1/4" fall per foot (2 cm per 1 m) on horizontal runs to get a good
ow. A vented tee connection is also required for proper ow.
• Drain lines should not be piped directly to the sewer system. An air gap of a minimum of
2vertical inches (5 cm) must be between the end of the drain pipes from the icemaker
and ice storage bin and the oor drain.
Water Supply
Inlet
Minimum Water Supply
Line Size
Icemaker and Bin
Drain Outlets
Minimum Drain
Line Size
1/2" Female Pipe
Thread (FPT)
1/4" Nominal ID
Copper Water Tubing or
Equivalent
3/4" Female Pipe
Thread (FPT)
3/4" NominalID
Hard Pipe or
Equivalent
15
Shut-Off Valve
Drain Valve
Icemaker Water Supply Inlet
1/2" FPT
Bin Drain Outlet
3/4" FPT
Icemaker Drain Outlet
3/4" FPT
Separate piping to approved drain.
Leave a 2-inch (5-cm) vertical air
gap between the end of each pipe
and the drain.
Icemaker
Fig. 5
F-500BAJ
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Shut-Off Valve
Drain Valve
Icemaker Water Supply Inlet
1/2" FPT
Bin Drain Outlet
3/4" FPT
Icemaker Drain Outlet
3/4" FPT
Icemaker
Fig. 4
F-300BAJ
Minimum 1/4" Nominal ID
Copper Water Tubing or
Equivalent
Minimum 3/4" Nominal ID
Hard Pipe or Equivalent
Separate piping to approved drain.
Leave a 2-inch (5-cm) vertical air
gap between the end of each pipe
and the drain.
Drain
2-inch
(5-cm) air gap
Floor
Be sure there is sufficient
extra water supply line and
drain line for the appliance
to be pulled out for service.
Drain
2-inch
(5-cm) air gap
Floor
Be sure there is sufficient
extra water supply line and
drain line for the appliance
to be pulled out for service.
Vent Tube
Minimum 1/4" Nominal ID
Copper Water Tubing or
Equivalent
Vent Tube
Vent Tube
16
G. Final Checklist
WARNING
CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after installation. Make sure that none have fallen into the ice
storage bin.
1. Pre-Startup
1) Is the icemaker level?
2) Is the icemaker in a site where the ambient temperature is within 45°F to 100°F (7°C to
38°C) and the water temperature within 45°F to 90°F (7°C to 32°C) all year around?
3) Is there at least 6" (15-cm) clearance at rear and sides and 24" (61-cm) at the top of the
icemaker?
4) Is there at least 6" (15 cm) at the rear and sides and 24" (61 cm) at the top of the
appliance for maintenance and service?
5) Have the shipping carton, tape, and packing material been removed from the
appliance?
6) Have all electrical and water connections been made? Do electrical and water
connections meet applicable national, state, and local code and regulation
requirements?
7) Has the power supply voltage been checked or tested against the nameplate rating?
Is the power supply a properly grounded, independent 3-prong wall outlet on corded
models, or has a proper ground been installed to the icemaker on hard-wired models?
8) Are the water supply and drain lines sized as specied? Are the water supply line
shut-off valve(s) and drain valve(s) installed? Has the water supply pressure been
checked to ensure a minimum of 10 PSIG and a maximum of 113 PSIG?
9) Are all components, fasteners, and thumbscrews securely in place?
10) Has the end user been given the instruction manual, and instructed on how to operate
the appliance and the importance of the recommended periodic maintenance?
11) Has the end user been given the contact information of an authorized service agent?
12) Has the warranty card been lled out and forwarded to the factory for warranty
registration?
13) Continue to "II.J. Startup."
17
2. Post-Startup
1) Has the bin control operation been conrmed?
2) Are all components, fasteners, and thumbscrews securely in place?
3) Has the end user been given the instruction manual, and instructed on how to operate
the appliance and the importance of the recommended periodic maintenance?
4) Has the end user been given the contact information of an authorized service agent?
5) Has the warranty registration been completed and submitted to the factory?
18
H. Startup
WARNING
• All parts are factory-adjusted. Improper adjustments may adversely affect safety,
performance, component life, and warranty coverage.
• To reduce the risk of electric shock, do not touch the power switch, control switch,
or plug (on corded models) with damp hands. If you have to slide the appliance
back for a built-in installation, make sure you do not damage or pinch the water
supply line, drain line, or power cord.
NOTICE
• If the appliance is turned off, wait for at least 3 min. before restarting the appliance
to prevent damage to the compressor.
• At startup, conrm that all internal and external connections are free of leaks.
1) Open the water supply line shut-off valve.
2) Remove the top and front panels.
3) Make sure the power switch is in the "OFF" position.
4a) Corded Models: Plug the icemaker into the electrical outlet.
4b) Hard-Wired Models: Turn on the power supply.
5) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position to start the automatic icemaking process. Replace the front and top panels.
6) Once the unit starts to produce ice, allow it to run for another 30 min.
7) Remove the top and front panels.
8) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Move the power switch to the "ON" position, then replace the front
and top panels. Allow the water system to drain for 5 min.
9) Remove the top and front panels, then move the power switch to the "OFF" position.
10a) Corded Models: Unplug the icemaker from the electrical outlet.
10b) Hard-Wired Models: Turn off the power supply.
11) Pour warm water into the ice storage bin and melt any remaining ice. Clean the ice
storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.
12) Conrm bin control operation. See "II.I. Bin Control Check."
19
I. Bin Control Check
A mechanical bin control controls the level of ice in the ice storage bin.
IMPORTANT
• Make sure the icemaker has been installed as outlined in this manual and that the
water supply is on.
• Make sure S2 dip switch 7 is in the "OFF" position and dip switch 8 is in the "ON"
position.
1) Remove the top and front panels and the control box cover.
2) Make sure the power switch is in the "OFF" position.
3a) Corded Models: Plug the icemaker into the electrical outlet.
3b) Hard-Wired Models: Turn on the power supply.
4) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position.
5) Make sure the "GM" LED on the control board is on. See Fig. 6. There is a delay of
at least 30 seconds before the "GM" LED turns on after power-up. After the "GM"
LED turns on, press the "SERVICE" button on the control board to bypass the 5-min.
compressor delay. WARNING! Risk of electric shock. Care should be taken not to
touch live terminals. Conrm the "COMP" LED turns on.
Note: If the "SERVICE" button is not pressed, the "COMP" LED turns on and
compressor energizes 5 min. after gear motor starts.
Fig. 6
Control Board
"BIN FULL" LED
"COMP" LED
"GM" LED
"POWER" LED
S2 DIP SWITCH
"ALARM" LED
"SERVICE" Button
Part Number
Label: 2A9874-01
20
Actuator
Fig. 7
Model Shown: F-500BAJ
Proximity Switch
6) Once the "COMP" LED is on and compressor is energized, press the actuator paddle
located in the ice storage bin (actuator paddle engaged). See Fig. 7.
The 90-sec. compressor shutdown timer starts. Once the 90-sec. compressor shutdown
timer terminates, compressor and fan motor de-energize and the 60-sec. gear motor
shutdown timer starts. Once the 60-sec. gear motor timer terminates, gear motor
de-energizes. Release the actuator to start the automatic icemaking process.
7) Move the power switch to the "OFF" position.
8a) Corded Models: Unplug the icemaker from the electrical outlet.
8b) Hard-Wired Models: Turn off the power supply.
9) Replace the control box cover in its correct position.
10a) Corded Models: Plug the icemaker into the electrical outlet.
10b) Hard-Wired Models: Turn on the power supply.
11) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position to start the automatic icemaking process.
12) Replace the front and top panels.
13) Return to "II.G.2. Post Startup."
21
J. Alarm Safeties
Should an alarm occur, follow the instructions in the table below to address the alarm.
If an alarm continues to occur, contact an authorized service agent.
In case of alarm, the built-in safeties shut down the unit, the orange "ALARM" LED turns
on, and audible alarms sound as listed below.
No. of Beeps
(every 5 sec.)
Type of Alarm Notes and Reset Options
1 Low-Water Safety
UFS open
>
90 sec. after WV energized.
Automatic reset once water supply is restored and
UFS closes.
2 Control Switch
In "DRAIN" position longer than 15 min.
Automatic reset once the control switch is moved to
the "ICE" position.
3 High-Pressure Switch
First and second activation in 1 hr.
Automatic reset once pressure drops below the high
pressure threshold and the high-pressure switch
closes.
4 High-Pressure Switch
Third activation in 1 hr.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this
alarm is resolved.
5 Freeze Timer
WV off
>
30 min. since last WV activation.
Call for service. Manual reset. Turn power off and
on again. Check for FS stuck (up), WV leaking by,
TXV defective, LLV not opening, low charge, HM not
bypassing, or inefficient Comp.
6 Low Voltage
92VAC
±
5% or less.
Green "POWER" LED turns off if voltage
protection operates.
Control voltage safeties automatically reset when
voltage is corrected.
7 High Voltage
147VAC
±
5% or more.
8 a) Gear Motor Fuse or Protector Open
CCR contacts fail to close.
Used on all models.
Turn power off. Check for GM fuse or protector open.
Replace fuse or let protector cool and reset.
If persistent trips occur, call for service.
b) Evaporator Thermistor
At GM startup Evaporator
thermistor < -4°F (-20°C).
Used on cubelet (-C)(-SC)(-CB)
models only.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this
alarm is resolved.
Manual reset. Turn power off and on again.
9 Bin Control 2 (Mechanical)
Open Circuit Control Board K8
(#3 and #4)
Not used on DCM or self-contained
models.
Manual reset. Turn power off and on again.
Modular Flaker and Cubelet (-C)(-SC)(-CB) Models:
Control Board S2 Dip Switch #7 must be ON.
DCM and Self-Contained Models:
Control Board S2 Dip Switch #7 must be OFF.
10 Evaporator Thermistor
Evaporator thermistor reaches -22°F
(-30°C) for 3 consecutive cycles.
Used on cubelet (-C)(-SC)(-CB)
models only.
Turn power off. Call for service.
To avoid possible catastrophic failure, it is
recommended to leave the icemaker off until this
alarm is resolved.
Manual reset. Turn power off and on again.
Legend: Comp–compressor; DV–drain valve; EH–evaporator heater; FM–fan motor;
FMR–fan motor-remote; FS–oat switch; GM–gear motor; HM–headmaster
(C.P.R.); LLV -liquid line valve; S LV –suction line valve; TXV–thermostatic
expansion valve; UFS–upper oat switch; WV–inlet water valve
Dip switches are factory set and must be adjusted per the unit’s service manual or
Hoshizaki Technical Support recommendation.
22
III. Maintenance
The appliance must be maintained in accordance with the instruction manual and labels
provided. Consult with your local Hoshizaki Certied Service Representative about
maintenance service. To obtain the name and phone number of your local Hoshizaki
Certied Service Representative, visit www.hoshizaki.com.
WARNING
• Only qualied service technicians should service the appliance.
• To reduce the risk of electric shock, do not touch the power switch, control switch,
or plug (on corded models) with damp hands. Make sure the power switch is in
the "OFF" position before plugging in or unplugging the appliance on corded
models.
• Before servicing, move the power switch to the "OFF" position.
Corded Models: Unplug the appliance from the electrical outlet.
Hard-Wired Models: Turn off the power supply. Lockout/Tagout to prevent the
power supply from being turned back on inadvertently.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after any maintenance is done to the appliance. Make sure that
none have fallen into the ice storage bin.
• Do not place ngers or any other objects into the ice discharge opening.
• After service, make sure that there are no wires pinched between the panels and
appliance. Make sure you do not damage or pinch the water supply line, drain
line, or power cord.
Fig. 8
Top Panel
Spout A
Actuator
Shaft
Bin Control Bracket
Proximity Switch
Snap Pin
Spout B
Evaporator Packing
Gasket B
Gasket A
Bin Top Cover
Evaporator
Assembly
Extruding Head
Reservoir
Model Shown: F-500BAJ
23
A. Maintenance Schedule
The maintenance schedule below is a guideline. More frequent maintenance may be
required depending on water quality, the appliance's environment, and local sanitation
regulations.
Maintenance Schedule
Frequency Area Task
Daily Scoop Clean the scoop using a neutral cleaner. Rinse thoroughly after cleaning.
Bi-Weekly Air Filter Inspect. Wash with warm water and neutral cleaner if dirty.
Monthly External Water
Filters
Check for proper pressure and change if necessary.
Icemaker Exterior Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust
colored spots) using a non-abrasive cleanser.
Every 6
Months
Icemaker and Ice
Storage Bin
Clean and sanitize per the cleaning and sanitizing instructions provided in
this manual. See "III.B. Cleaning and Sanitizing Instructions."
Evaporator
Condensate Drain
Pan and Gear
Motor Drain Pan
Wipe down with a clean cloth and warm water. Slowly pour one cup of
sanitizing solution (prepare as outlined in the sanitizing instructions in this
manual) into the evaporator condensate drain pan (drains into gear motor
drain pan). Be careful not to overow the gear motor drain pan. Repeat with
a cup of clean water to rinse.
Icemaker and Ice
Storage Bin Drains
Check to make sure they are clear.
Extruding Head
Seal Bolts
Inspect for leakage around seal bolts. Tighten (see torque value below) or
replace as necessary. Seal bolts must be replaced once removed because
seal material is one-time use only. If new seal bolts do not have preapplied
threadlocker, apply Loctite243 or equivalent threadlocker to seal bolt
threads.
• Torque: 11.1 ft-lb/15 N·m.
Tighten 2 times. Allow at least 5 sec. in between each tightening.
Yearly Inlet Water Valve
and Drain Valve
Close the water supply line shut-off valve and drain the water system. Clean
the inlet water valve screen and clean and inspect the drain valve.
Water Hoses Inspect the water hoses and clean/replace if necessary.
Condenser Inspect. Clean if necessary by using a brush or vacuum cleaner.
Icemaker Inspect for oil spots, loose components, fasteners, and wires.
Upper Bearing
(extruding head)
Check for wear using .02" round stock or pin gauge. Replace both upper
bearing and lower bearing if wear exceeds factory recommendations. See
the Service Manual for details.
After
3 Years,
then Yearly
Upper Bearing
(extruding head);
Lower Bearing
and O-ring
(lower housing);
Mechanical
Seal; Evaporator
Cylinder; Auger
Inspect. Replace both upper bearing and lower bearing if wear exceeds
factory recommendations. Replace the mechanical seal if the seal's contact
surfaces are worn, cracked, or scratched. See the Service Manual for
details.
24
B. Cleaning and Sanitizing Instructions
The icemaker must be cleaned and sanitized at least twice a year. More frequent
cleaning and sanitizing may be required insome conditions.
WARNING
• To prevent injury to individuals and damage to the appliance, do not use ammonia
type cleaners.
• Carefully follow any instructions provided with the cleaning and sanitizing
solutions.
• Always wear liquid-proof gloves and goggles to prevent the cleaning and sanitizing
solutions from coming into contact with skin or eyes.
• After cleaning and sanitizing, do not use ice made from the cleaning and
sanitizing solutions. Be careful not to leave any solution on the parts or in the ice
storage bin.
• Do not place ngers or any other objects into the ice discharge opening.
1. Cleaning Solution
Dilute 4.8 . oz. (142 ml) of Hoshizaki "Scale Away" with 0.8 gal. (3 l) of warm water. This
is a minimum amount. Make more solution if necessary. IMPORTANT! For safety and
maximum effectiveness, use the solution immediately after dilution.
2. Cleaning Procedure
1) Close the water supply line shut-off valve.
2) Remove the top and front panels.
3) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5 min.
Note: If the control switch is left in the "DRAIN" position for 10 min. or more, a 2-beep
alarm sounds every 5 sec. Move the control switch out of the "DRAIN" position to
clear the alarm.
4) Remove all ice from the ice storage bin.
5) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
6) Remove spout B and gasket B, then remove spout A, and gasket A. See Fig. 8.
7) Pour the cleaning solution over the extruding head until the evaporator assembly and
the reservoir are full and the solution starts to run through the overow hose on the
reservoir.
Note: If there is excess scale on the extruding head, ll the evaporator assembly and
reservoir as described above, then use a clamp on the reservoir hose between
the reservoir and evaporator assembly to block ow. Pour additional cleaning
solution over the extruding head until the evaporator assembly is completely full.
8) Replace gasket A, spout A, gasket B, and spout B in their correct positions.
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9) Allow the icemaker to sit for 10 min. before operation. If you placed a clamp on the
reservoir hose in step 7, remove it before operation.
10) In bad or severe water conditions, clean the oat switch assembly as described below.
See Fig. 9. Otherwise, continue to step 11.
a. Remove the oat switch assembly from
the reservoir cover.
b. Wipe down the oat switch assembly
with the cleaning solution.
c. Rinse the oat switch assembly
thoroughly with clean water.
d. Replace the oat switch assembly in its
correct position.
11) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position. Replace the front and top panels in their correct positions. Make ice using the
solution until the icemaker stops making ice.
12) Remove the top and front panels.
13) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5min.
14) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
15) Move the control switch to the "ICE" position.
16) Move the power switch to the "ON" position, then replace the front and top panels in
their correct positions.
17) Open the water supply line shut-off valve to supply water to the reservoir.
18) After the gear motor starts, remove the top and front panels.
19) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5min.
20) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
Note: If you do not sanitize the unit, go to step 16 in "III.B.5. Sanitizing
Procedure - Final."
21) Close the icemaker water supply line shut-off valve.
Float Switch Assembly
Reservoir
Reservoir Cover
Fig. 9
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3. Sanitizing Solution
Dilute 2.5 . oz. (74 ml or 5 tbs) of a 5.25% sodium hypochlorite solution (chlorine
bleach) with 5 gal. (19 l) of warm water. This is a minimum amount. Make more solution
if necessary. IMPORTANT! For safety and maximum effectiveness, use the solution
immediately after dilution.
4. Sanitizing Procedure - Initial
1) Make sure the power switch is in the "OFF" position and the icemaker water supply line
shut-off valve is closed.
2) Remove the top and front panels. Remove spout B and gasket B, then remove spout A,
gasket A, and the evaporator packing.
3) Pour the sanitizing solution over the extruding head until the evaporator assembly and
the reservoir are full and the solution starts to run through the overow hose on the
reservoir.
4) Remove the snap pin, shaft, actuator, and bin control bracket from the bin top cover.
5) Remove the sliding door.
6) Soak the sliding door, spouts, gaskets, evaporator packing, snap pin, shaft, actuator,
and bin control bracket in .25gal. (1 l) of sanitizing solution for 10 min., then wipe them
down.
7) Rinse the parts thoroughly with clean water. NOTICE! If the solution is left on these
parts, they will rust.
8) Replace all parts in their correct positions.
9) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position. Replace the front and top panels in their correct positions. Make ice using the
solution until the icemaker stops making ice.
10) Remove the top and front panels.
11) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5min.
12) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
27
5. Sanitizing Procedure - Final
1) Mix a new batch of the sanitizing solution.
2) Remove spout B and gasket B, then remove spout A and gasket A.
3) Pour the sanitizing solution over the extruding head until the evaporator assembly and
the reservoir are full and the solution starts to run through the overow hose on the
reservoir.
4) Allow the icemaker to sit for 10 min. before operation.
5) Replace gasket A, spout A, gasket B, and spout B in their correct positions.
6) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position. Replace the front and top panels in their correct positions. Make ice using the
solution until the icemaker stops making ice.
7) Remove the top and front panels.
8) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5min.
9) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
10) Move the control switch to the "ICE" position.
11) Move the power switch to the "ON" position, then replace the top and front panels in
their correct positions.
12) Open the water supply line shut-off valve to supply water to the reservoir.
13) After the gear motor starts, remove the top and front panels.
14) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5 min.
15) After the water system has drained, remove the top and front panels, then move the
power switch to the "OFF" position.
16) Move the control switch to the "ICE" position, then move the power switch to the "ON"
position to start the automatic icemaking process, then replace the top and front panels
in their correct positions. Allow the icemaker to run for 30 min.
17) After 30 min., remove the top and front panels and move the power switch to the "OFF"
position.
18) Pour warm water into the ice storage bin to melt all of the ice. Clean the ice storage bin
liner thoroughly using a neutral cleaner. Rinse thoroughly after cleaning.
19) Move the power switch to the "ON" position to start the automatic icemaking process.
20) Replace the top and front panels in their correct positions.
28
IV. Preparing the Appliance for Periods of Non-Use
NOTICE
When storing the appliance for an extended time or in sub-freezing temperatures,
follow the instructions below to prevent damage.
When the appliance is not used for two or three days under normal conditions, it
is sufficient to only move the power switch to the "OFF" position. When storing the
appliance for extended time or in sub-freezing temperatures, follow the instructions
below.
1) Close the icemaker water supply line shut-off valve and open the icemaker water supply
line drain valve.
2) Remove the top and front panels.
3) Move the power switch to the "OFF" position, then move the control switch to the
"DRAIN" position. Next, move the power switch to the "ON" position. Replace the front
and top panels in their correct positions. Allow the water system to drain for 5 min.
Note: If the control switch is left in the "DRAIN" position for 10 min. or more, a 2-beep
alarm sounds every 5 sec. Move the control switch out of the "DRAIN" position to
clear the alarm.
4) Attach a compressed air or carbon dioxide supply to the icemaker water supply line
drain valve.
5) Move the control switch to the "ICE" position, to open the inlet water valve and briey
blow out the inlet water valve. After blowing out the inlet water valve, move the power
switch to the "OFF" position.
6) Close the icemaker water supply line drain valve.
7) Remove all ice from the ice storage bin. Clean the ice storage bin liner and door using a
neutral cleaner. Rinse thoroughly after cleaning.
8) Replace the top and front panels in their correct positions.
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V. Disposal
This appliance contains refrigerant and must be disposed of in accordance with
applicable national, state, and local codes and regulations. Refrigerant must be
recovered by properly certied service personnel.
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618 Hwy. 74 South, Peachtree City, GA 30269 USA (P) 770.487.2331 (F) 770.487.3360 hoshizakiamerica.com 1A7255-010
