Haier D-Series Service Manual

Also see for AS09DCAHRA: Operation manual

Haier D-Series Service Manual Manual pdf 45 page image

Seivice diagnosis43 Domestic air conditioner10.4.5 IPM protectionOutdoor display LED1 flash 2 timesIPM protection is detected by checking the compressor running condition and so on■ The system leads to IPM protection due to over current■ The compressor faulty leads to IPM protection■ circuit component of IPM is broken and led to IPM protection■ IPM protection dues to the compressor faulty■ IPM protection dues to faulty PCB of IPM module■ Compressor wiring disconnected* Caution Be sure to turn off power switch before connect or disconnect connector, orelse parts damage may be occurred.Electrify the machine again and turn it onwith the remote controller,If malfunctionsare reported before or upon the compressorbeing started up,IPM Module is damaged andneeds replacing.1ǃThe system may have been over or under charged with gas, which can be judged through the pressure of themeasuring system.2ǃThe shaft of compressor is seized and the compressor needs replacing.YESNOThe compressor is started normally, butmalfunctions are reported after it has run for sometime.Malfunction unsolvedTroubleshootingMalfunctionDetection ConditionsSupposed CausesMethod ofMalfunction Detection