Haier HSU09 VHG(DB)-G&W Service Manual

Contents

HSU09VHG(DB)-SM Service Diagnosis56Domestic Air Conditioner7.4.6 Over-current of the compressorOutdoor Display LED1 flash 3 or 24 or 25 timesMethod of The current of the compressor is too highMalfunctionDetectionMalfunction when the IPM Module is damagedDecision or the compressor is damagedConditions power supply. voltage is too low or too highSupposed ■ Faulty IPM ModuleCauses ■ Faulty compressor■ Faulty power supplyTroubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, orparts 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.Repair the power supplythe system may have been over or under chargedwith gas, which can be judged through thepressure of the measuring system.YESNOYesNOThe compressor is started normally, butmalfunctions are reported after it hasrun for some time. Check the powersupply is too low or too highNO