Error Code List - Gree HLR45SNa-M Installation And Operation Manual

4.6 Error Code List

Error code
E1
E2
E3
E4
E5
E6
E7
E8
E9
b1
b2
b3
b4
b5
b8
b9
F1
F2
F3
F4
F5
F6
F7
F8
F9
EC
1) Auto reset: It means after error is cleared and compressor stop protection time is satisfied, unit resumes
running automatically.
2) Manual reset: It means manually press OFF to clear error code first, 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.
Household (Townhouse) Central Air Conditioning Unit
Meaning for Error
Compressor 1 high-pressure protection
System-antifreeze protection
Compressor 1 low-pressure protection
Compressor 1 exhaust temp. protection
Compressor 1 overload protection
Water pump overload protection
Water-flow on/off error
Fan 1 overload protection
System 1 anti high-temp.
Compressor 2 high-pressure protection
System 2 antifreeze protection
Compressor 2 low-pressure protection
Compressor 2 exhaust temp. protection
Compressor 2 overload protection
Fan 2 overload protection
System 2 anti-high temp.
Antifreeze temp. sensor 1 error
Antifreeze temp. sensor 2 error
Defrost temp. sensor 1 error
Defrost temp. sensor 2 error
Exhaust temp. sensor 1 error
Exhaust temp. sensor 2 error
Outdoor ambient temp. sensor error
Water-in temp. sensor
Water-out temp. sensor
Communication malfunction
8
Method of Clearing Error
Press OFF to clear
Resumes automatically
Press OFF to clear
Press OFF to clear
Press OFF to clear
Press OFF to clear
Press OFF to clear
Press OFF to clear
Resumes automatically
Press OFF to clear
Resumes automatically
Press OFF to clear
Press OFF to clear
Press OFF to clear
Press OFF to clear
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically
Resumes automatically