Gree U match UMAT18HP230V1AD Owner'S Manual Download Page 25

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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.

Summary of Contents for U match UMAT18HP230V1AD

Page 1: ...SLIM CONCEALED DUCT UNIT OWNER S MANUAL Models UMAT18HP230V1AD UMAT24HP230V1AD UMAT30HP230V1AD UMAT36HP230V1AD UMAT42HP230V1AD UMAT48HP230V1AD...

Page 2: ...gy 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 engine...

Page 3: ...ed wiredTether 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 solutio...

Page 4: ...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 Out...

Page 5: ...h 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 w...

Page 6: ...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...

Page 7: ...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 3 1 Air outlet Air outle...

Page 8: ...e 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 wiredTether Controller m...

Page 9: ...h 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 cond...

Page 10: ...ditions 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 T...

Page 11: ...elect an operating mode It will change sequentially as shown below Auto Cool Dry Fan Heat Off State On State Auto Cool Dry Fan Heat F F F TEMPERATURE SETTING Press or to increase decrease the setpoint...

Page 12: ...e Turbo Mode can only be used on Heat or Cool modes Turbo Setting Press Function button until theTurbo icon is displayed Then press Enter Cancel to confirm To cancel press the Function button to re en...

Page 13: ...rements Timer On Setting Turn the unit Off press theTimer 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 th...

Page 14: ...unit to remain ON before turning OFF by pressing the or buttons PressTimer button to confirm and startTimer Off mode F F F F F Turn On the unit and select Heat or Cool mode PressTimer button to selec...

Page 15: ...il 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 set...

Page 16: ...e Sleep icon appears on the display Press the Enter Cancel button to start Sleep Mode F F F F Turn On the unit and select a mode Press Function until the Sleep icon is displayed Press Enter Cancel to...

Page 17: ...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 F Tu...

Page 18: ...e Function button until the I Feel icon is displayed then press Enter Cancel to activate the function 17 F Turn Unit On Press Function until the I Feel icon is displayed Press Enter Cancel to start I...

Page 19: ...ns 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 Th...

Page 20: ...Press the Function andTimer 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...

Page 21: ...s displayed Press and to select the outdoor air damper run time see table below F F 20 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 RunTime 54 OF...

Page 22: ...Lock prevents unauthorized access to the unit controls and prevents tampering with system settings To lock the wiredTether Controller press and buttons simultaneously for 5 seconds and the Lock Icon w...

Page 23: ...ast 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 uni...

Page 24: ...e 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 conditio...

Page 25: ...ressor Motor Failure IPM ModuleTemperatureToo High HighAmbient LowVoltage or Bad Connections Indoor Fan Stopped or Running too Slow High Pressure LowVoltage or Bad Connections Bad Connection Solenoid...

Page 26: ...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 rea...

Page 27: ...abor 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...

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