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F1
F2
H6
C5
U8
F0
E8
without mode indicator.
20
Indoor ambient temperature sensor is open/short-circuited
Indoor evaporator temperature sensor is open/short-circuited
Blocked protection of IDU fan motor
Malfunction protection of jumper cap
Zero-crossing inspection circuit malfunction of the IDU fan motor
Lack of refrigerant or block protection for the system(not applicable to
residential air conditioner)
Overload malfunction
Service Manual
No display for some models
Technical Information
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