Gree Air Conditioner Error Codes

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Gree inverter air conditioners, portable air conditioners, and mini split air conditioners typically present error codes to indicate a problem with the indoor and outdoor units. Understanding the meaning of the error code displayed on the LED screen of the air conditioner will help in the troubleshooting process.

Refer to your owner's manual for a full error code list for your air conditioner model, or check our full Gree air conditioner error code list below. Our licensed technicians will be able to repair any problems with your air conditioner: refrigerant leaks, indoor or outdoor temperature sensor errors, thermostat malfunctions, and more!

E Series Error Codes

Error Code Meaning
E1 Refrigerant system high pressure protection
E2 Anti-freezing protection (cooling mode)
E3 Low refrigerant levels
E4 Compressor exhaust high temperature protection
E5 AC over-current protection
E6 Communication failure between indoor unit and outdoor unit
E8 Anti-high temperature protection
E9 Indoor unit water pump and water level problem
EE Loading EEPROM malfunction
ee Outdoor unit drive memory chip error
EU IPM over temperature limit / drop frequency

F Series Error Codes

Error Code Meaning
F0 Refrigerant Leakage Protection
F1 Indoor unit ambient sensor open or short circuit/ Malfunction of indoor ambient temperature sensor.
F2 Indoor unit tube sensor open or short circuit/ Malfunction of evaporator temperature sensor.
F3 Outdoor ambient temperature sensor open or short circuit
F4 Outdoor unit tube sensor open or short circuit
F5 Exhaust sensor open or short circuit
F6 Overload limit / drop frequency
F8 Over current limit / drop frequency
F9 High exhaust temperature limit / drop frequency
FA Over tube temperature drop frequency
FC Door malfunction
FE Compressor overload sensor malfunction
FH Anti-freezing limit / drop frequency

H Series Error Codes

Error Code Meaning
H0 Anti-high temperature drop frequency (heating mode)
H1 Defrosting
H2 Static clearing dust protection
H3 Compressor overload protection
H4 System abnormal protection
H5 IPM protection
H6 Indoor fan block/ No feedback of indoor fan motor
H7 Compressor loss step protection
HC PFC protection
HE Compressor demagnetization protection

L Series Error Codes

Error Code Meaning
L3 Outdoor DC fan motor malfunction
Lc Startup failure
Ld Compressor loss of phase protection
LE Compressor locked rotor protection

P Series Error Codes

Error Code Meaning
P0 Drive module reset problem
P5 Over compressor phase current protection
P6 Communication failure between main board and driver board
P7 IPM sensor circuit malfunction
P8 IPM high temperature protection
PA AC current protection from input area
Pc Current detect circuit malfunction or Current sensor malfunction
PH Over voltage protection for PN
PL Low PN voltage protection
PU Capacitor charge malfunction

U Series Error Codes

Error Code Meaning
U1 Compressor phase current detection circuit malfunction
U2 Compressor protection against loss of phase
U3 PN voltage drop protection
U4 Compressor reverse protection
U5 AC current detect circuit malfunction
U7 4-way valve reversal abnormal
U8 Disconnection of the exhaust temperature sensor
U9 AC power zero voltage detect error

Other Error Codes

Error Code Meaning
oE PFC module temperature protection/PFC module sensor malfunction
b5 Inlet tube sensor malfunction
b7 Outlet tube sensor malfunction
C5 Jumper cap malfunction protection
C5 Malfunction of connector jumper.

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