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Troubleshooting Guide
–27–
Failures to Start
Check of circuit breaker
and fuse.
Check control switch.
Fan only fails to start
Improper wiring
Defect of fan motor
capacitor.
Irregular motor
resistance
( Ω
)
Irregular motor
insulation
( Ω
)
Replacement of fan motor.
Improper electric heater
Replacement of electric
heater
Regular but fails to start.
Replacement of compressor
Electric heater is not energized
Loose terminal connection.
Improper wiring
Irregular motor resistance ( Ω
)
Irregular motor insulation ( Ω
)
Replacement of compressor
Drop of power voltage
Capacitor check
Replacement
Compressor only fails to
start
Defect of compressor
capacitor
Check power source.
Check control switch
setting.