Gree HLR45SNa-M - Error Code List

Household (Townhouse) Central Air Conditioning Unit
8
4.6 Error Code List
Error code Meaning for Error Method of Clearing Error
E1 Compressor 1 high-pressure protection Press OFF to clear
E2 System-antifreeze protection Resumes automatically
E3 Compressor 1 low-pressure protection Press OFF to clear
E4 Compressor 1 exhaust temp. protection Press OFF to clear
E5 Compressor 1 overload protection Press OFF to clear
E6 Water pump overload protection Press OFF to clear
E7 Water-ow on/off error Press OFF to clear
E8 Fan 1 overload protection Press OFF to clear
E9 System 1 anti high-temp. Resumes automatically
b1 Compressor 2 high-pressure protection Press OFF to clear
b2 System 2 antifreeze protection Resumes automatically
b3 Compressor 2 low-pressure protection Press OFF to clear
b4 Compressor 2 exhaust temp. protection Press OFF to clear
b5 Compressor 2 overload protection Press OFF to clear
b8 Fan 2 overload protection Press OFF to clear
b9 System 2 anti-high temp. Resumes automatically
F1 Antifreeze temp. sensor 1 error Resumes automatically
F2 Antifreeze temp. sensor 2 error Resumes automatically
F3 Defrost temp. sensor 1 error Resumes automatically
F4 Defrost temp. sensor 2 error Resumes automatically
F5 Exhaust temp. sensor 1 error Resumes automatically
F6 Exhaust temp. sensor 2 error Resumes automatically
F7 Outdoor ambient temp. sensor error Resumes automatically
F8 Water-in temp. sensor Resumes automatically
F9 Water-out temp. sensor Resumes automatically
EC Communication malfunction Resumes automatically
1) Auto reset: It means after error is cleared and compressor stop protection time is satised, unit resumes
running automatically.
2) Manual reset: It means manually press OFF to clear error code rst, and then press ON to make the unit
operates after malfunction is cleared.
3) When low-pressure protection is detected for 3 times in consecutive 30min, reset mode changes
to manual mode from auto mode. When overload at compressor and fan motor is detected for 3 times in
consecutive 30min, reset mode changes to manual mode from auto mode. Note:The installation of the
controller must be done by professionals.
Note
：
The installation of the controller must be done by professionals.