Haier AU42NALEAA Service Manual - Page 170
Failure code for AP482AKEAA
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>a__WcU[S^ a`V[e[a`Wc Failure code for wall mounted unit(AS182AVERA) ---- displayed on the indoor LCD: Failure description Remark code 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 Communication failure alarms for 4 minutes outdoor 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 Compressor discharging temperature over high temperature protection protection F5 Module over current / current transducer failure F6 Outdoor ambient temp. sensor abnormal Outdoor ambient temp. sensor in short current or open circuit F7 Outdoor suction/defrosting temp. sensor Outdoor suction/defrosting temp. sensor in short abnormal circuit or open circuit F8 High pressure abnormal High pressure too high F9 Low pressure abnormal Low pressure abnormal F10 No AC power supply F11 Outdoor PCB EEPROM abnormal Being electrified to test if the E2 check sum is correct or failure F13 Communication failure between outdoor PCB and module F14 Compressor discharging temp. sensor Outdoor compressor discharging temp. sensor in failure short circuit or open circuit F15 Compressor running faulty Resumable F16 Running state-detecting circuit failure Outdoor DC compressor running state-detecting circuit failure, or compressor abnormal, resumable Failure code for AP482AKEAA No. Fault description 1 Indoor ambient temp. sensor failure 2 Indoor coil temp. sensor failure 3 Outdoor ambient temp. sensor failure 4 Outdoor coil temp. sensor failure 5 CT current failure 6 Pressure protection 7 Communication failure between indoor units and panel 8 Communication failure between indoor and outdoor PCB Operation panel display E1 E2 E3 E4 E5 E6 E8 E9 -170-
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