MARQ INVERTER AC ERROR CODE

MARQ INVERTER AC ERROR CODE

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Error CodeProblem / Meaning
EEIndoor unit EEPROM (memory) error
E0Outdoor unit EEPROM (memory) error
E1Indoor fan motor fault
E2Indoor fan zero-crossing detection error
E3Indoor coil temperature sensor fault
E4Indoor room temperature sensor fault
E6Communication failure between indoor & outdoor unit
E7Communication error between main PCB & driver PCB
F1Compressor starting failure / phase problem
F2Compressor out-of-step or rotor lock
F3IPM (Inverter Power Module) fault
F4Compressor protection (over-temperature / overload)
F5Outdoor exhaust temperature sensor fault
F6Outdoor suction temperature sensor fault
F7Outdoor coil temperature sensor fault
F8Outdoor ambient temperature sensor fault
F9Outdoor DC fan motor fault

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