LG LWHD1800HR Service Manual - Page 25
Room Air Conditioner, Troubleshooting Guide
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Troubleshooting Guide Fails to Start Check of power source. Check of control switch setting. Compressor only fails to start. Drop of power voltage. Defect of compressor capacitor. Capacitor check. Replacement Check circuit breaker and fuse. Gas leakage of feeler bulb of thermostat Check of control switch. Improper thermostat setting. Loose terminal connection. Improper wiring. Fan only fails to start. Improper wiring. Defect of fan motor capacitor. Irregular motor resistance ( ). Irregular motor insulation ( ). Replacement of fan motor. Irregular motor resistance ( ) Irregular motor insulation ( ) Replacement of compressor (Motor damaged) 25 Room Air Conditioner Regular but fails to start. Replacement of compressor (locking of rotor, metal).