McQuay All models error codes
Codes
- A1Error codeIndoor Main PCB Defect
- A3Error codeDrain Water Level Abnormality
- A5Error codeHigh Pressure / Freeze-Up Control Active
- A6Error codeIndoor Fan Motor Lock / Overload
- C4Error codeIndoor Heat Exchanger Thermistor Fault
- C9Error codeRoom Temperature Thermistor Fault
- E0Error codeSystem malfunction
- E1Error codethe room temperature sensor is short-circuited or torn
- E02Error codehigh temperature of compressor 1 (overload)
- E2Error codethe evaporator heat exchanger temperature sensor is short-circuited or interrupted
- E03Error codeincreased temperature of compressor 2 (overload)
- E3Error codeHigh Pressure Switch Actuation
- E04Error codecompressor temperature 3 (overload)
- E4Error codeLow Pressure Switch Actuation
- E05Error codecompressor temperature 4 (overload)
- E5Error codeInverter Compressor Overload
- E06Error codeactivation of the compressor high pressure switch 1 / thermal contact activation
- E6Error codethe pump (pump) is faulty
- E07Error codeactuation of the compressor high pressure switch 2 / thermal contact activation
- E7Error codeOutdoor DC Fan Motor Fault
- E08Error codeactivation of the compressor high pressure switch 3 / thermal contact activation
- E8Error codeHardware error (tact switch pin short)
- E09Error codeactivation of the compressor high pressure switch 4 / thermal contact activation
- E9Error codeElectronic Expansion Valve (EXV) Issue
- E10Error codeactivation of the compressor pressure switch 1 / shortage of refrigerant / anomalous outdoor temperature
- E11Error codeactivation of the compressor pressure switch 2 / shortage of refrigerant / anomalous outdoor temperature
- E12Error codeactivation of the compressor pressure switch 3 / shortage of refrigerant / anomalous outdoor temperature
- E13Error codeactivation of the compressor pressure switch 4 / shortage of refrigerant / anomalous outdoor temperature
- E14Error codethe room temperature sensor is shorted
- E15Error codethe room temperature sensor is open
- E16Error codeEvaporator temperature sensor 1 short-circuited
- E17Error codeEvaporator temperature sensor 2 short-circuited
- E18Error codeEvaporator temperature sensor 3 short-circuited
- E19Error codeEvaporator temperature sensor 4 short-circuited
- E20Error codeevaporator temperature sensor 1 open
- E21Error codeevaporator temperature sensor 2 open
- E22Error codeevaporator temperature sensor 3 open
- E23Error codeevaporator temperature sensor 4 open
- E24Error codecondenser temperature sensor 1 shorted
- E25Error codecondenser temperature sensor 2 shorted
- E26Error codecondenser temperature sensor 3 short-circuited
- E27Error codecondenser temperature sensor 4 short-circuited
- E28Error codeCondenser temperature sensor 1 open
- E29Error codeCondenser temperature sensor 2 open
- E30Error codeCondenser temperature sensor 3 open
- E31Error codeCondenser temperature sensor 4 open
- EAError code4-Way Reversing Valve Malfunction
- EC00Error code00## indoor unit communication
- EC01Error code01# indoor unit communication failure
- EC63Error codeSlaver outdoor unit communication failure