LG REG-123A Service Manual - Page 25

Service Manual, Troubleshooting Guide

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Fails to Start Troubleshooting Guide 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) Regular but fails to start. Replacement of compressor (locking of rotor, metal). Service Manual 25

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