Fails to Start
Check of power source.
Check of control switch setting.
Only compressor fails to start.
Drop of power voltage
Defect of compressor capacitor
Check capacitor.
Replacement
Check of circuit breaker and fuse.
Gas leakage of feeler bulb of thermostat
Check of control switch.
Only fan fails to start.
Improper wiring
Improper thermostat setting
Defect of fan motor capacitor
Loose terminal connection
Resistance irregular motor ( 
).
Insulation irregular motor
( 
).
Improper wiring
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)
— 20—
