22
Technical Information
Service Manual
No display for some models
without mode indicator.
F1
Indoor ambient temperature sensor is open/short-circuited
F2
Indoor evaporator temperature sensor is open/short-circuited
H6
Blocked protection of IDU fan motor
C5
Malfunction protection of jumper cap
U8
Zero-crossing inspection circuit malfunction of the IDU fan motor
F0
Lack of refrigerant or block protection for the system(not applicable to
residential air conditioner)
E8
Overload malfunction