  Circuit diagrams                                                                       Domestic air conditioner 11.4.11 Loss of synchronism detectionInverter side current detection is abnormalWithin 3 minutes after the machine issupplied with power and turned on withthe remote controller, check whetherthe compressor can start up1. The wiring of compressor is incorrector the connection is poor;2. The compressor is damagedAt first, the compressor start up ,soon thecompressor stopped with the LED1 on theoutdoor PCB blinks˄1Hz˅19/18 timesIPM Module is damaged and needsreplacing.the Malfunctions exist also, thecompressor is damaged replace anew oneYESNOYESMalfunction unsolvedMaybe there is some disturbanceMethod ofmalfunction detectionMalfunction detectionconditionsTroubleshootingThe position of the compressor rotor can not detected normallywhen the wiring of compressor is wrong or the connection is poor; or the compressoris damagedŶFaulty The wiring of compressorŶFaulty compressorŶFaulty PCBSupposed causes* CautionBe sure to turn off power switch before connect or disconnect connector, or elseparts damage may be occurred.LED1 flash 18 timesLED1 flash 19 timesOutdoor diplay43

Haier AS53HE1HRA Service Manual

operation manual

PARTS AND FUNCTIONS

OPERATION

quiet operation

health operation

timer operation

smart operation

test operation

MAINTENANCE

CAUTIONS

TROUBLE SHOOTING

AS53HE1HRA

AS71NE1HRE

N-Series