Gree UMAT30HP230V1AD Air Conditioner Cooling Area, User Manual

SLIM CONCEALED DUCT UNIT

OWNER’S MANUAL

Models:

UMAT18HP230V1AD

UMAT24HP230V1AD

UMAT30HP230V1AD

UMAT36HP230V1AD

UMAT42HP230V1AD

UMAT48HP230V1AD

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Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

System Schematic

. . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22

Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Troubleshooting & Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . 24

Energy Saving Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back

Thank you for choosing a

Slim Concealed Duct

Air Conditioning & Heating System!

You can feel confident in your selection because the same pride in craftsmanship

and engineering knowledge that goes into millions of other Gree installed

products worldwide has gone into your unit.

Please read this owner’s manual carefully before operation and retain it for

future reference.

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Superior Design for Superior Performance

Compact and powerful, this Gree U‐Match Slim Concealed Duct indoor unit offers the ultimate

in flexibility and discretion. It is designed to be concealed above suspended ceilings or within

open closet spaces to deliver conditioned air via ducting and suitable ceiling or wall grilles.

This arrangement provides immense flexibility, in terms of both the distribution of conditioned

air and the type of grille or diffuser that best complements any room’s styling. Your unit is easily

operated from the wall‐mounted wired Tether Controller.

Like all Gree systems, this unit provides quiet comfort and energy efficient heating and cooling.

For many residential and light commercial applications, it is the ideal solution to balance comfort,

efficiency and ease of use.

The Slim Concealed Duct unit works in conjunction with the U‐Match outdoor compressor

section, featuring Gree’s exclusive G‐10 Inverter technology. The Inverter constantly adjusts

compressor speed to save energy, reduce outdoor noise and maintain a steady room

temperature, by eliminating the harsh starts and stops of conventional systems.

Thank you for selecting this Gree air conditioner. Before operating your unit,

please read this manual carefully and retain it for further reference.

INTRODUCTION

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Indoor unit

Outdoor unit

NOMENCLATURE

UMAT 18 1 A D

Series Designation

UMAT – U-Match Series

Product Type

S - System

O - Outdoor Units

H - Indoor High Wall

D - Indoor Duct

C - Indoor Cassette

F - Indoor Floor/Ceiling

Revision Level

Style/Color Designation

Electrical Rating

230V - 208/230V 60Hz 1PH

115V - 115V 60Hz 1PH

230V

Cooling Capacity

18 - 18,000 BtuH

24 - 24,000 BtuH

30 - 30,000 BtuH

36 - 36,000 BtuH

42 - 42,000 BtuH

48 - 48,000 BtuH

Model Type

AC - Cooling Only

HP - Heat Pump

HC - Heat/Cool

Example: UMAT18HP230V1AD

UMAT 18 1 A O

Series Designation

UMAT – U-Match Series

Product Type

S - System

O - Outdoor Units

H - Indoor High Wall

D - Indoor Duct

C - Indoor Cassette

F - Indoor Floor/Ceiling

Revision Level

Style/Color Designation

Electrical Rating

230V - 208/230V 60Hz 1PH

115V - 115V 60Hz 1PH

230V

Cooling Capacity

18 - 18,000 BtuH

24 - 24,000 BtuH

30 - 30,000 BtuH

36 - 36,000 BtuH

42 - 42,000 BtuH

48 - 48,000 BtuH

Model Type

AC - Cooling Only

HP - Heat Pump

HC - Heat/Cool

Example: UMAT18HP230V1AO

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WARNING

SAFETY PRECAUTIONS

Please read the following before operation.

Recognize safety information. This is the safety-alert symbol. When you see this

symbol on the unit and in instructions or manuals, be alert to the potential for personal

injury. Understand these signal words: DANGER, WARNING, and CAUTION. These

words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in severe personal injury

or death.

WARNING signifies hazards which could result in personal injury or death.

CAUTION is used to identify unsafe practices which may result in minor personal

injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation,

reliability, or operation.

NOTE: Your actual air conditioning & heating system and related devices may differ

from the images shown in this manual.

Heat pumps, air conditioners & heating equipment should be installed, started up, and

serviced only by qualified installers and service technicians. Air conditioning, heat pumps

and refrigeration systems are hazardous due to high voltage electrical components,

high refrigerant pressures, and moving parts.

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WARNING

SAFETY PRECAUTIONS

Please read the following before operation.

• Disconnect electrical power to the indoor and outdoor units before performing any

maintenance or cleaning.

• Do not attempt to repair the

Gree

system yourself. Incorrect repairs may cause

electric shock or fire. Contact a qualified service technician for all service requirements.

• Keep combustible materials away from the unit.

• Do not put hands or any objects into the air inlets or outlets. This may cause personal

injury or damage the unit.

• When cleaning, be careful not to splash water on the unit. Doing this may cause

electric shock or damage to unit.

CAUTION

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System Schematic

Indoor Unit

System Components*

1. Indoor Power Supply

2. Electric Box

3. Communication Cable

4. Wired Tether Controller

5. Communication Cable

6. Front Panel

7. Service Cover

8. Liquid Pipe

9. Gas Pipe

10. Drain Hose

11. Outdoor Power Supply

Outdoor Unit

Air outlet

Air inlet

Not all items included in

equipment purchase

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SYSTEM FUNCTIONS

WHISPER QUIET

Not only are the Gree systems energy efficient but they are quiet too. Slim Concealed Duct

operates with sound levels starting as low as 28 dB(A).

MULTI FAN SPEEDS

Whether operating in either Cooling or Heating mode, the indoor fan can be set to your choice

of three different speeds (Low, Medium or High) to achieve maximum comfort.

BUILT IN CONDENSATE LIFT PUMP

The indoor unit features a built-in drain pump that pumps condensate from the basepan to the

drain system.

CONDENSATE SENTRY

The unit’s fail-safe mechanism recognizes when there is a high level in the condensate pan and

shuts off the system to prevent overflow.

INTELLIGENT PRE-HEATING

The U-Match system guards against the annoying cool air blown into the room in heating mode.

The system constantly monitors the discharge air temperature. It will delay the indoor fan until

the indoor coil has warmed up to prevent blowing uncomfortable cool air into the room.

TETHER CONTROLLER

The Gree wired Tether Controller mounts to the wall up to 25 feet from the unit. It provides

complete control over your unit’s operation mode, desired temperature, fan speed, airflow

direction and more.

INTELLIGENT DEFROST

The U-Match Intelligent Defrost function increases room comfort and saves energy by eliminating

unnecessary defrost cycles. In heating mode, the unit will monitor the outdoor coil for frost

buildup. Once frost buildup has been detected, the system will switch into a defrost mode to

remove the frost.

In defrost mode the wired Tether Controller display will show "H1" and the indoor fan and

outdoor fan will turn off while the system removes frost from the outdoor coil. Once the frost

has been removed, the wired Tether Controller display shows room set point and the system

will revert back to normal heating operation.

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SYSTEM FUNCTIONS

POWER FAILURE MODES

Power interruptions are no problem for the U-Match system. User selections and system

parameters are stored in non-volatile memory. These parameters are retained during a power

failure. When power is returned, the slim duct system will automatically return to the last

operating mode. Or, the system can be set to power up in standby mode.

TURBO MODE

Use Turbo Mode for situations when you wish to achieve the desired room temperature in the

shortest possible time. This mode runs the unit at ultra high speeds for quickest results.

CLOCK

Using the 24-hour clock feature, you can control each function in real time, for the most user-

friendly operation.

MODE BUTTON

The unit can be set to five different operating modes: HEAT, COOL, DRY, FAN ONLY and AUTO.

NOTE:

AUTO MODE has fixed setpoints of 68° F heating and 77° F cooling, which are

not adjustable. The system will automatically select heating or cooling to maintain room

temperature within this band.

DRY MODE

Select this mode to increase moisture removal during warm humid conditions. In Dry mode

the indoor fan will run at low speed during the cooling cycle. When setpoint is reached, the

indoor fan will turn off with the compressor.

TIMER MODE

The unit can be programmed to turn ON or OFF after a specific amount of time. The time period

is adjustable between one half and 24 hours.

SLEEP MODE

The unit will automatically adjust room temperature during your sleep time. This slight change in

temperature will not affect your comfort level due to the natural effects that sleeping has on the

body, but it will save on energy consumption and will lower electric bills.

X-FAN MODE

When operating in humid areas, U-Match has a Dry Coil function called X-Fan that will allow the

indoor fan to run for a pre-determined amount of time after the unit is turned off (cooling or dry

modes) to ensure that additional moisture is removed from coil.

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SYSTEM FUNCTIONS

FAHRENHEIT °F / CELSIUS °C

The wired Tether Controller can be set to display in either °F or °C.

SELF-DIAGNOSIS

With an on-board computer using real-time diagnostics, the Gree U-Match system helps to

prolong its own life. The automatic diagnosis feature continuously scans for unacceptable

operating conditions or malfunctions. If such conditions occur, the system takes corrective action

or stops. Error codes are shown on the unit display to facilitate easy troubleshooting and repair.

PRIVACY LOCK MODE

The wired Tether Controller has a Privacy Lock. The Privacy Lock averts unauthorized access or

tampering with system settings.

AGENCY LISTINGS

All systems are listed with AHRI (Air conditioning, Heating, and Refrigeration Institute) and are

ETL certified per UL Standards.

INTRODUCTION TO THE TETHER CONTROLLER

X-FAN

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OPERATING INSTRUCTIONS

ON/OFF BUTTON

Press On/Off to turn On the unit. Press again to turn it Off.

MODE SETTING

When the unit is ON, press Mode button to select an operating mode. It will change

sequentially as shown below: Auto–Cool–Dry–Fan–Heat

“Off” State “On” State

Auto Cool Dry Fan Heat

TEMPERATURE SETTING

Press ▲ or ▼ to increase/decrease the setpoint temperature as shown below. In Cool, Dry,

Fan or Heat mode, the setpoint temperature range is 61°-86°F. In Auto mode, the setpoint

temperature is not adjustable.

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OPERATING INSTRUCTIONS

FAN SETTING

When the unit is ON, press Fan button to select the fan speed of the indoor unit.

It will change sequentially as shown below.

Auto Low Medium High

TURBO MODE

Turbo mode will force the unit up to maximum capacity to heat or cool the room in the shortest

amount of time. Turbo Mode can only be used on Heat or Cool modes.

Turbo Setting

Press Function button until the Turbo icon is displayed. Then press Enter/Cancel to confirm. To

cancel, press the Function button to re-enter the Turbo setting status, then press Enter/Cancel.

Turn On the unit and select Heat or Cool mode. Press Enter/Cancel to start Turbo mode.

To cancel, press Function button to re-enter

the Turbo settings, then press Enter/Cancel button.

Press Function until Turbo mode Icon is displayed.

Cancel Turbo Mode

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OPERATING INSTRUCTIONS

TIMER SETTING

The U-Match System has two timer modes. The Timer-On mode will turn the unit ON after

the preset time period. The Timer-Off Mode will turn the unit OFF after the preset time period.

The preset time period can be from 0.5 to 24 hours in 0.5 hour increments.

Timer-On Setting

Turn the unit Off, press the Timer button. The OFF icon will flash and the hours will be displayed.

Set the time period for the unit to remain OFF before turning ON by pressing the ▲ or ▼

buttons. Press Timer button to confirm and start Timer-On mode.

F F

Turn Off the unit.

Press Timer button to select Timer On mode.

Press ▲ or▼ to select time period.

Timer modes can be cancelled anytime

by pressing the Timer button.

Cancel Timer

Press Enter/Cancel to start timer mode.

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OPERATING INSTRUCTIONS

Timer-Off Setting

Turn the unit On, press the Timer button. The ON icon will flash and the hours will be displayed.

Set the time period for the unit to remain ON before turning OFF by pressing the

▲ or ▼

buttons. Press Timer button to confirm and start Timer-Off mode.

F F

Turn On the unit and select Heat

or Cool mode.

Press Timer button to select Timer Off mode.

Press ▲ or▼ to select time period.

Timer modes can be cancelled anytime

by pressing the Timer button.

Cancel Timer

Press Enter/Cancel to start timer mode.

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SLEEP MODE

The unit will automatically adjust room temperature during your sleep time. This slight change

in temperature will not affect your comfort level due to the natural effects that sleeping has

on the body, but it will save on energy consumption and will lower your electric bill. Press the

SLEEP button to select Sleep Mode. The SLEEP icon will appear.

In Cool or Dry modes:

If setpoint is between 61℉ to 73℉, temperature will slowly increase 2℉ per hour for 3 hours,

then maintain this setpoint for 4 hours, then reduce setpoint by 2℉ and hold at this setpoint

until Sleep Mode is cancelled.

If setpoint is between 74℉ to 81℉, temperature will slowly increase 2℉ per hour for 2 hours,

then maintain this setpoint for 5 hours, then reduce setpoint by 2℉ and hold at this setpoint

until Sleep Mode is cancelled.

If setpoint is between 82℉ to 85℉, temperature will slowly increase 2℉ per hour for 1 hour,

then maintain this setpoint for 6 hours, then reduce setpoint by 2℉ and hold at this setpoint

until Sleep Mode is cancelled.

If setpoint is 86℉, unit will run at this setpoint for 7 hours, then reduce setpoint by 2℉ and

hold at this setpoint until Sleep Mode is cancelled.

In Heat mode:

If setpoint is between 82 ℉ to 86℉, the unit will slowly reduce setpoint by 2℉ per hour for

3 hours, and then maintain this setpoint until Sleep Mode is cancelled.

If setpoint is between 69 ℉ to 81℉, the unit will slowly reduce setpoint by 2℉ per hour for

2 hours, and then maintain this setpoint until Sleep Mode is cancelled.

If setpoint is between 63℉ to 68℉, the unit will reduce setpoint by 2℉, and then maintain

this setpoint until Sleep Mode is cancelled.

If setpoint is 62℉, the unit will run at this setpoint until Sleep Mode is cancelled.

Cooling Mode

Heating Mode

OPERATING INSTRUCTIONS

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OPERATING INSTRUCTIONS

Sleep Setting

Turn the unit On and select a mode (ex. Heat, Cool, or Dry). Press the Function button until

the Sleep icon appears on the display. Press the Enter/Cancel button to start Sleep Mode.

Turn On the unit and select a mode.

Press Function until the Sleep icon is displayed. Press Enter/Cancel to start Sleep Mode.

Cancel Sleep Mode

Press Function until the Sleep icon appears.

Press the Enter/Cancel button to cancel Sleep Mode.

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FFF

OPERATING INSTRUCTIONS

X-FAN MODE

The X-Fan function may only be selected in Cool and Dry modes. After the unit is turned Off,

the X-Fan function will keep the indoor fan running for 2 minutes to dry the indoor evaporator

coil to help avoid mold and mildew growth.

X-Fan Settings

Turn the unit On and select Cool or Dry mode. Press Function button until X-fan icon is

displayed and then press Enter/Cancel to activate this function.

Turn On the unit, select Cooling

or Dry mode.

Press Function until the X-fan icon is displayed.

Press Enter/Cancel to start X-fan

mode.

Cancel X-Fan Mode

To cancel, press Function button to re-enter the

X-Fan settings, then press Enter/Cancel button.

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OPERATING INSTRUCTIONS

I-FEEL MODE

The indoor unit will sense room temperature at the wired Tether Controller instead of at the

return air section of the indoor unit.

I-Feel Settings

Press the Function button until the I-Feel icon is displayed, then press Enter/Cancel to

activate the function.

Turn Unit On.

Press Function until the I-Feel icon is displayed. Press Enter/Cancel to start I-Feel

mode.

To cancel, press Function button to re-enter the

I-Feel settings, then press Enter/Cancel button.

Cancel I-Feel Mode

Indoor Unit Room Sensor A

Tether Controller Indoor Room Sensor B

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OPERATING INSTRUCTIONS

FREEZE GUARD MODE

The unit will automatically maintain the room temperature above 46º F. This setpoint

temperature is not adjustable. Freeze Guard Mode can only be selected with the unit in Heat

Mode. Fan speed selection will be not be allowed; the unit will automatically select the proper

fan speed for the room conditions.

Freeze Guard Setting

In Heat mode, press Function until the Freeze Guard icon is displayed. Press Enter/Cancel

button to activate.

To deactivate, press Function to select“Freeze Guard” setting status. Then press Enter/Cancel until

the flashing “Freeze Guard”symbol disappears.

Cancel Freeze Guard Mode

To cancel, press Function button to re-enter the

Freeze Guard settings, then press Enter/Cancel button.

Turn Unit On and select Heat Mode.

Press Function until the

Freeze Guard icon is displayed.

Press Enter/Cancel to start Freeze Guard

mode.

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Setup and Configuration Modes

INDOOR FAN MODE

The unit has two selectable indoor fan operating modes:

Mode 0 (Factory default setting): The indoor fan will run continuously, except in heat mode,

where the indoor fan will continue to run for 60 seconds after room temperature reaches setpoint.

Mode 1: The indoor fan will turn Off 10 seconds after the room temperature reaches

setpoint, regardless of the mode.

Indoor Fan Mode Setting

Turn the unit Off, Press the Function and Timer buttons simultaneously for 5 seconds until 00

is displayed on the temperature display. Press Mode button until 05 is displayed. Then press

▲ and ▼ buttons to select the desired indoor fan mode ( ‘00' for Mode 0 or '01' for Mode 1).

Press Enter/Cancel button to activate.

OPERATING INSTRUCTIONS

Cancel Indoor Fan Mode

To cancel, press Enter/Cancel button

and quit from the interface.

Turn Unit Off.

Simultaneously, press Function and Timer

buttons for 5 sec until '00' is displayed.

Press ▲ or ▼ button to select

an indoor fan mode.

Press Enter/Cancel to activate.

Press Mode button until “05” is shown

on the temperature display area.

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Outdoor

Fresh Air

Indoor Side

Air Valve

Air Intake Pipe Air Supply Pipe

OPERATING INSTRUCTIONS

OUTDOOR AIR MODE

The Outdoor Air Mode can be used when a field supplied outdoor air damper is connected to the

Slim Duct unit or ductwork. The Outdoor Air Mode controls the outdoor air entering the system.

Outdoor Air Setting

When the unit is ON, press Function until the AIR icon is displayed. Press ▲ and ▼ to select

the outdoor air damper run time (see table below).

AIR CODE 1 2 3 4 5 6 7 8 9 10

Air Damper

6-ON 12-ON 18-ON 24-ON 30-ON 36-ON 42-ON 48-ON 54-ON 60-ON

Run Time

54-OFF 48-OFF 42-OFF 36-OFF 30-OFF 24-OFF 18-OFF 12-OFF 6-OFF 0-OFF

Damper Run Time Table (Minutes)

Cancel Outdoor Air Mode

To cancel, press Function button to re-enter the

Outdoor Air Mode settings, then press Enter/Cancel button.

Turn Unit On.

Press Function until the Air icon is displayed.

Press Enter/Cancel button to activate

Outdoor Air Mode.

Press ▲ or ▼ button to select

damper run time.

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OPERATING INSTRUCTIONS

CELSIUS OR FAHRENHEIT TEMPERATURE DISPLAY

The wired Tether Controller is set from the factory to display

temperature in Fahrenheit (Fº). If Celsius (Cº) is desired, turn

the unit OFF, press Mode and ▼ buttons at the same time

for 5 seconds to alternate between temperature displays.

TEMPERATURE DISPLAY MODE

The wired Tether Controller may display either room temperature sensed at the system, room

temperature sensed at the Tether Controller, or return air temperature sensed at the indoor unit.

Temperature Display Setting

To set the Tether Controller temperature display, turn unit Off. Press Function and Timer buttons

simultaneously for 5 sec. The temperature display will show 00. Press the Mode button to

select the Display Code (see table below) for the desired temperature display. Press Enter/

Cancel button to save the setting.

PRIVACY LOCK

The Privacy Lock prevents unauthorized access to the unit

controls and prevents tampering with system settings. To

lock the wired Tether Controller, press ▲ and ▼ buttons

simultaneously for 5 seconds and the Lock Icon will be displayed.

Repeat the process to unlock the Tether Controller and

cancel Privacy Lock.

Press Function & Timer buttons

simultaneously 5 sec until 00 is displayed.

Press Mode button to

select display mode.

Press Enter/Cancel button to

save setting.

To activate Privacy Lock.

TEMPERATURE DISPLAY MODE

Return air temperature sensed at the return air inlet.

Indoor ambient temperature sensed at the wired Tether Controller.

Return air temperature sensed at the return air inlet during Cool, Dry and Fan modes. During Heat and

Auto modes, display the indoor ambient temperature sensed at the wired Tether Controller.

Indoor ambient temperature sensed at the wired Tether Controller during Cool, Dry and Fan modes.

Return air temperature sensed at the return air inlet during Heat & Auto modes.

Factory Default Setting

DISPLAY CODE

To change temperature display.

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POWER FAILURE MODES

The unit has two selectable system power up modes:

Power Failure Recovery

After the initial power up, the unit will store user selections and system parameters in

non-volatile memory. These parameters are retained during a power failure. When power is

returned, the system will automatically return to the last operating mode.

Power Failure Standby

The system will power up in standby or off mode. This is the factory default setting.

POWER FAILURE MODE SETTINGS

To set Power Failure Recovery Mode, turn the unit OFF and press the Mode and

▲

buttons

simultaneously for 5 seconds until the MEMORY Icon is displayed.

Repeat the process to select Standby mode. In Standby mode the Memory icon is not displayed.

OPERATING INSTRUCTIONS

F F F

MEMORY

Turn Unit Off.

Press Mode and ▲ buttons 5 sec

until MEMORY icon is displayed.

Repeat to change Modes.

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WARNING

CAUTION

WARNING

CAUTION

Take notice of the following items before cleaning your air conditioning unit.

• To avoid electric shock or injury, do not attempt to clean the unit unless it has been

turned off and disconnected from the main power supply.

• Do not wash the unit with water; this may cause an electric shock.

• During cleaning, be sure to use a stable standing platform.

CLEANING THE FILTER

• Never remove the air filter from the unit except for cleaning; otherwise it may cause

dust or dirt to restrict airflow to the unit.

• When the air conditioning unit is used in an environment with heavy dust, the air filter

should be cleaned often (generally once every two weeks).

Perform the following on an annual basis:

• Clean or replace air filter.

• Inspect drain line for potential clogs or leaks.

• Hose off both sides of the coil in the outdoor unit to remove loose debris or dirt buildup.

CARE AND CLEANING

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EQUIPMENT FAULT

Indoor Configuration Jumper

Indoor/Outdoor Mismatch

High Current Protection

Communication Error

Indoor Air Temp. Thermistor

Indoor Coil Temp. Thermistor

Outdoor Air Temp. Thermistor

Outdoor Coil Temp. Thermistor

Compressor Discharge

Compressor Overload Protection

IPM Module Protection

Indoor Fan Malfunction

Compressor Synchronism

4-Way Valve Malfunction

Defrost Mode

High Pressure Protection

POSSIBLE CAUSES

Missing Configuration Jumper on Indoor Control Board

Indoor and Outdoor Units Do Not Match (Model or Capacity)

Power Supply is not Stable and Voltage Range is too Large

Mis-wired or Communication Failure

Bad Connection, or Indoor Air Sensor Failure

Bad Connection, or Indoor Coil Sensor Failure

Bad Connection, or Outdoor Ambient Sensor Failure

Bad Connection, or Outdoor Coil Sensor Failure

Bad Connection, or Discharge Sensor Failure

Low Refrigerant Charge, Blocked Capillary, or Compressor Motor Failure

IPM Module Temperature Too High, High Ambient, Low Voltage,

or Bad Connections

Indoor Fan Stopped or Running too Slow

High Pressure, Low Voltage, or Bad Connections

Bad Connection, Solenoid Failure, or Valve Malfunction

No failure, system is defrosting indoor coil

Too much refrigerant, High Ambient conditions or low airflow

ERROR CODES

TROUBLESHOOTING & DIAGNOSTIC CODES

Diagnostic Codes

Troubleshooting

PROBLEM

Failed startup

Unit runs, then stops

Poor cooling effect

Poor heating effect

POSSIBLE CAUSES

• There is no power supply

• Circuit breaker is tripped due to electrical leakage

• Air inlet/outlet of the indoor/outdoor unit is clogged

• Air filter screen is too dirty or clogged

• There are too many heat sources in the room

• A door or window is open

• There are obstacles at the air inlet/outlet

• Temperature is set too high

• Air filter screen is too dirty or clogged

• A door or window is open

• Temperature is set too low

NOTE: If the air conditioner still malfunctions after checking these possible causes,

contact an authorized service technician.

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ENERGY SAVING TIPS

1. Relaxing room temperature at night is OK: During the nighttime hours you

don't require the same level of conscious cooling or heating. Try using Sleep Mode to

gradually relax room temperature and allow the unit to run less and save energy.

2. Curtains and shades: In the summer, you need to block the effects of the sun.

Close window curtains and shades on the south and west side of your home to help

block solar heat. In winter, the sun is your friend. Open curtains and shades to allow

solar heat into your room.

3. Close doors: If you don’t need to heat and cool your whole home, confine the heating

and cooling to one room by closing doors. Limit the space you’re heating and cooling

to specified capability of the unit.

4. Service the unit: Some basic maintenance might be all you need. The outdoor unit

will greatly benefit from a good hosing out, especially in treed areas where seeds and

other debris can stick to coil fins and make the unit work up to 15% harder!

5. Rearrange the room: Furniture that obstructs airflow means you could be heating

and cooling the back of a chair or the front of a sofa instead of the actual living space.

Remove or rearrange obstacles blocking airflow.

6. Try 75 degrees: 75°F is a good point for an air conditioner to run at its optimal

performance level. Even a 5-degree change in temperature can make your unit use

up to 40% more energy!

7. Lighting: Turning lights off can help reduce your heat. Each light bulb is a tiny heater.

Your air conditioner must waste energy overcoming the heat from your lights to reach

and hold your desired room temperature.

8. Is anyone home? If possible, while you're away turn your unit to Auto mode and

make sure windows and drapes are closed. Although room temperature may be less

than optimal for a few minutes when you come home, the unit will soon have the

room back to your desired temperature.

9. Don't forget the fan: The fan is much like a car. The faster it runs, the more energy it

uses. Sometimes we need the car to go fast, but slow is good enough most of the time.

Try saving money by using the comfortable quiet low fan speed as much as possible.

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GREE ELECTRIC APPLIANCES, INC.

www.greecomfort.com

LIMITED WARRANTY

GREE distributor (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship under normal use and maintenance as

follows. All warranty periods begin on the date of original installation. If the date cannot be verified, the warranty period begins one hundred twenty (120) days from

date of manufacture. If a part fails due to defect during the applicable warranty period Company will provide a new or remanufactured part, at Company’s option,

to replace the failed defective part at no charge for the part. This limited warranty is subject to all provisions, conditions, limitations and exclusions listed below.

• Seven (7) years on compressor and Five (5) years on all parts to the original registered end‐user.

• One (1) year warranty on remote controller unit.

• Proper installation – Limited warranty applies only to systems that are installed by a state certified or licensed HVAC contractor, under applicable local and

state law in accordance with all applicable building codes and permits; GREE installation and operation instructions and good trade practices.

• Warranty applies only to products remaining in their original installation location.

• Defective parts must be returned to the distributor through a registered servicing dealer for credit.

LIMITATIONS OF WARRANTIES: ALL IMPLIED WARRANTIES AND/OR CONDITIONS (INCLUDING IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR USE OR PURPOSE) ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY, SOME STATES OR PROVINCES DO NOT ALLOW

LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY OR CONDITION LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESS WARRANTIES MADE IN THIS

WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON, WHATSOEVER.

THIS WARRANTY DOES NOT COVER:

1. Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing or handling of either defective parts, or replacement parts,

or new units.

2. Normal maintenance as outlined in the installation and servicing instructions or Owner’s Manual, including filter cleaning and/or replacement and lubrication.

3. Failure, damage or repairs due to faulty installation, misapplication, abuse, improper servicing, unauthorized alteration or improper operation.

4. Failure to start due to voltage conditions, blown fuses, open circuit breakers, or damages due to the inadequacy or interruption of electrical service.

5. Failure or damage due to floods, winds, fires, lightning, accidents, corrosive environments (rust, etc.) or other conditions beyond the control of the Company.

6. Parts not supplied or designated by Company, or damages resulting from their use.

7. Products installed outside USA and Canada.

8. Electricity or fuel costs, or increases in electricity or fuel costs from any reason whatsoever, including additional or unusual use of supplemental electric heat.

9. Any cost to replace, refill or dispose of refrigerant, including the cost of refrigerant.

10. Any special, indirect or consequential property or commercial damage of any nature whatsoever. Some states or provinces do not allow the exclusion of