40
Meaning of Each Error
Error
Code
High pressure protection
E1
Low pressure protection
E3
Discharge protection
E4
Over-current protection
P5
Communication error
E6
Indoor water overflow protection
E9
Mode conflict
E7
Anti-freezing protection
E2
Defrosting or oil returning for heating
H1
Indoor ambient temperature sensor open/short circuit
F1
Evaporator temperature sensor open/short circuit
F2
Indoor unit (liquid valve) refrigerant pipe inlet temperature sensor error
b5
Indoor unit (gas valve) refrigerant pipe outlet temperature sensor error
b7
Condenser coil inlet temperature sensor open/short circuit
A5
Condenser coil midway temperature sensor error
F4
Condenser coil outlet temperature senor open/short circuit
A7
Discharge air temperature sensor error
F5
Outdoor ambient temperature sensor error
F3
Module temperature sensor error
oE
Outdoor unit overall error
oE
User’s Instructions