Air Conditioner Error Codes

  Haier Air Conditioner Fault Codes Failure code for wall mounted unit – Displayed on the indoor LCD: Error Code Description Remark E1 Indoor room temperature sensor failure Indoor room temp. sensor in short circuit, or open circuit, it can resume due to the signal. E2 Indoor coil temperature sensor failure Indoor coil temp. sensor in short circuit, or open circuit, it can resume due to the signal. E4 EEPROM wrong Being electrified to test E2 check sum, or E2 is broken down. E7 Communication failure between indoor and outdoor Communication failure alarms for 4 minutes contineously, it can resume due to the signal. E14 Indoor fan motor failure Indoor fan motor wrong wiring or indoor fan motor abnormal. E18 Temperature cutoff protection Outdoor 4-way valve response abnormal. F1 Module failure Outdoor module abnormal F2 Outdoor DC motor failure Outdoor DC motor abnormal F4 Compressor overheat / discharging temperature protection Compressor discharging temperature over high protection ...

  Haier Commercial Air Conditioning, Fault Code List for H-MRV Indoor Unit Haier MRV Air Conditioner Error Codes Models with wired controller Fault description-Models with remote controller E3 Fault in liquid pipe temp. sensor. 1 flash of Timer indicator E4 Fault in suction pipe temp. sensor. 2 flashes of Timer indicator E9 Communication error between indoor and outdoor units. 4 flashes of Timer indicator E7 Communication error between indoor unit and PCB of PMV valve. 5 flashes of Timer indicator E5 Communication error between 846 and 808 chips. 6 flashes of Timer indicator E0 Fault in float switch or pump motor. 11 flashes of Timer indicator E1 Fault in outdoor unit E8 Communication error between wired controller and indoor unit PCB AU482FIBHA Fault Code List Digital readout Description 01 The detected sensor value is below 20H (open-circuit) or above 1000H (short-circuit) for 60 seconds. The fault is fixable 02 The detected sensor value is below 20H (open-circuit) or above 1000H...