Acson Air Conditioner Error Codes
A1 Indoor PCB ERROR
A3 Drone Pump ABNORMAL
A5 ANTIFREEZE (cooling) / heat accelerator overheating (heating)
A6 Indoor Fan Motor Atal
AH Electrical AIR Cleaners AB
C4 INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT / OPEN
C5 INDOOR HEAT EXCHANGER (2) TI-IERMISTOR SHORT / OPEN
C7 loose limit switch error
C9 Indoor Room Thermometer / Open
E1 OUTDOOR PCB ERROR
E3 High Pressure Protection
E4 Low Pressure Protection
E5 Compressor Motor Lock / Compressor Overlayed
E6 COMPRESSOR Start-up ERROR
E7 Outdoor DC Fan Motor Lock
E8 Cover AC anytime
EA 4th error error
F3 discharge pipe overheat
F6 Heat Exchanger Overheat
HO Constructor Sensor System ERROR
H3 high pressure switch error
H6 COMPRESSOR Feedback Withdrawal Error
H7 fan motor overboard / overcenter / sensor assistant
H8 AC CURRENT SENSOR SENSOR
E01 manual reset required (possible reason)
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 Travel / Open Contact
E07 Compressor 2 High Pressure Travel / Contact Open
E08 Compressor 3 High Pressure Travel / Contact Open
E09 Compressor 4 High Pressure Travel / Contact Open
E10 Compressor 1 Travel / Low Refrigerant / External Abnormal
E11 Compressor 2 NIP / Low Refrigerant / External Abnormal
E12 Compressor 3 Travel / Low Refrigerant / External Abnormal
E13 Compressor 4 Travel / Low Refrigerant / External Abnormal
E14 Room Sensor Short E32 Compressor 1 D-Ice
E15 Room Sensor Unlocked E33 Compressor 2D-Ice
E16 Indoor Coil Sensor 1 Short E34 Compressor 3D-Ice
E17 Indoor Coil Sensor 2 Short E35 Compressor 4D-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 Faulty
E25 Outdoor Coil Sensor 2 Faulty
E26 Outdoor Coil Sensor 3 Faulty
E27 Outdoor Coil Sensor 4 Faulty
E28outdoor coil sensor 1 open
E29 outdoor coil sensor 2 open
E30 outdoor coil sensor 3 open
