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