Haier HSU-09HEG03/R2(DB) Service Manual

Also see for HSU-09HEG03/R2(DB): Operation manual Operation manual

Contents

Haier HSU-09HEG03/R2(DB) Service Manual Manual pdf 66 page image

Service Diagnosis63Domestic Air Conditioner7.4.11 Loss of synchronism detectionInverter side current detection is abnoramlOutdoor Display LED1 flash 18 timesLED1 flash 19 timesMethod of The position of the compressor rotor can not detected normallyMalfunctionDetectionMalfunction when the wiring of compressor is wrong or the connection is poor;Decision or the compressor is damagedConditionsSupposed ■ Faulty The wiring of compressorCauses ■ Faulty compressor■ Faulty PCBTroubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or partsdamage may be occurred.Within 3 minutes after the machine issupplied with power and turned on withthe remote controller,check whetherthe compressor can stard up1. The wiring of compressor is incorrector the connection is poor;2. The compressor is damagedAt frist, the compressor start up ,soon thecompressor stopped with the LED1 on theoutdoor PCB blinks˄1Hz˅19/18 times IPM Module is damaged and needsreplacing.the Malfunctions exist also, thecompressor is damaged replace anew oneYESNOYESMalfunction unsolvedMaybe there is some disturbance