Gree Aircon Error Codes & Blinking Lights

Search official GREE common mini-split, U-Match, and Multi GEN2 residential service-manual error codes. Confirm the exact indoor and outdoor model before treating a row as final.

Gree Error Code & Blinking Light Lookup

Search the code shown on the indoor display or wired controller, then narrow by system type when the same code appears in different GREE tables.

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Gree Aircon Error Codes & Blinking Lights

Gree Error Code & Blinking Light Lookup

E1High-pressure protection

E3Low-pressure protection

E5Over-current protection

E7Mode conflict between indoor and outdoor units

F1Indoor ambient temperature sensor fault

F2Indoor evaporator temperature sensor fault

F3Outdoor ambient temperature sensor fault

F4Outdoor tube temperature sensor fault

F5Compressor discharge temperature sensor fault

H1Defrost status or defrost-related operation

H5IPM or power-module protection

C5Jumper cap or board configuration fault

U3DC bus-bar voltage drop

L9Power protection

E1Compressor high pressure protection

E2Freeze protection

E3Compressor low pressure protection, refrigerant lacking protection, or refrigerant recycling mode

E4Compressor high discharge temperature protection

E6Communication malfunction

E8Malfunction of indoor fan motor

E9Full water protection

F0Malfunction of indoor ambient temperature sensor

F1Malfunction of evaporator temperature sensor

F2Malfunction of condenser temperature sensor

F3Malfunction of outdoor ambient temperature sensor

F4Malfunction of discharge temperature sensor

F5Malfunction wired controller temperature sensor

C5Wrong dial switch of capacity

EEMalfunction of outdoor main control memory chip

PFMalfunction of electric box sensor

H3Compressor overload protection

H4Overload protection

H5IPM protection

H6Malfunction of DC fan motor

H7Drive desynchronizing protection

HCPFC protection

L1Malfunction of humidity sensor

LCStart-up failure

LDCompressor phase protection

LFPower protection

LPModels of indoor unit and outdoor unit do not match

U7Direction changing malfunction of 4-way valve

P0Drive reset protection

P5Overcurrent protection

P6Communication malfunction between main control and drive

P7Malfunction of drive module sensor

P8High temperature protection of drive module

P9Zero-cross protection

PAAC current protection

PCMalfunction of drive current

PDSensor connection protection

PETemperature excursion protection

PLLow voltage protection of bus bar

PHHigh voltage protection of bus bar

PUCharging circuit malfunction

PPAbnormity of input voltage

EEMalfunction of outdoor drive memory chip

U8Zero-cross detection circuit malfunction

b5Liquid valve temperature sensor is open or short-circuited

b7Gas valve temperature sensor is open or short-circuited

U1Phase current detection circuit malfunction for compressor

HECompressor demagnetization protection

UPCharging capacitor malfunction

E1High pressure protection of system

E3Low pressure protection of system

H3Compressor overload protection

PLIndoor unit and outdoor unit do not match

EEMemory chip malfunction

dnWrong communication wire connection or electronic expansion valve malfunction

U5Complete-unit current detection malfunction

L3Outdoor fan 1 malfunction

ddWrong communication wire connection or electronic expansion valve detection status

E7Mode conflict

FoRefrigerant recycling mode

LAX-fan operation

H1Defrosting or oil return in heating mode

LcCompressor start failure

E4High discharge temperature protection of compressor