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Acson Easi-Gard Air Curtain ACA308B.
Acson Wall Mounted Air Conditioner

Acson Air Conditioner Error Codes

A1 INDOOR PCB ERROR

 

A3 DRAIN PUMP ABNORMAL

 

A5 ANTIFREEZE (COOLING)/HEAT EXCHANGER OVERHEAT (HEATING)

 

A6 INDOOR FAN MOTOR ABNORMAL

 

AH ELECTRICAL AIR CLEANER ABNORMAL

 

C4 INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT/OPEN

 

C5 INDOOR HEAT EXCHANGER (2) TI-IERMISTOR SHORT/OPEN

 

C7 LOUVER LIMIT SWITCH ERROR

 

C9 INDOOR ROOM THERMISTOR SHORT/OPEN

 

E1 OUTDOOR PCB ERROR

 

E3 HIGH PRESSURE PROTECTION

 

E4 LOW PRESSURE PROTECTION

 

E5 COMPRESSOR MOTOR LOCK/COMPRESSOR OVERLOADED

 

E6 COMPRESSOR START-UP ERROR

 

E7 OUTDOOR DC FAN MOTOR LOCK

 

E8 AC INPUT OVER CURRENT

 

EA 4 WAY VALVE ERROR

 

F3 DISCHARGE PIPE OVERHEAT

 

F6 HEAT EXCHANGER OVERHEAT

 

HO CONIPRESSOR SENSOR SYSTEM ERROR

 

H3 HIGH PRESSURE SWITCH ERROR

 

H6 COMPRESSOR FEEDBACK DETECTION ERROR

 

 

H7 FAN MOTOR OVERLOADED/OVERCURRENT/SENSOR ABNORMAL

 

H8 AC CURRENT SENSOR ERROR

 

E01 Require manual reset (possible causes)

 

E02 Compressor 1 high temperature (overload)

 

E03 Compressor 2 high temperature (overload)

 

E04 Compressor 3 high temperature (overload)

 

E05 Compressor 4 high temperature (overload)

 

E06 Compressor 1 high pressure trip / contact open

 

E07 Compressor 2 high pressure trip / contact open

 

E08 Compressor 3 high pressure trip / contact open

 

E09 Compressor 4 high pressure trip / contact open

 

E10 Compressor 1 trip/low refrigerant/outdoor abnormal

 

E11 Compressor 2 nip/low refrigerant/outdoor abnormal

 

E12 Compressor 3 trip/low refrigerant/outdoor abnormal

 

E13 Compressor 4 trip/low refrigerant/outdoor abnormal

 

E14 Room sensor short E32 Compressor 1 de-ice

 

E15 Room sensor open E33 Compressor 2 de-ice

 

E16 Indoor coil sensor 1 short E34 Compressor 3 de-ice

 

E17 Indoor coil sensor 2 short E35 Compressor 4 de-ice

 

E18 Indoor coil sensor 3 short

 

E19 Indoor coil sensor 4 short

 

E20 Indoor coil sensor 1 open

 

E21 Indoor coil sensor 2 open

 

E22 Indoor coil sensor 3 open

 

E23 Indoor coil sensor 4 open

 

E24 Outdoor coil sensor 1 short

 

E25 Outdoor coil sensor 2 short

 

E26 Outdoor coil sensor 3 short

 

E27 Outdoor coil sensor 4 short

 

E28 Outdoor coil sensor 1 open

 

E29 Outdoor coil sensor 2 open

 

E30 Outdoor coil sensor 3 open