Heat Controller RADS-51B manual Fails to Start

Fails to Start

Check of power source.

Check of control switch setting.

Compressor fails only to start.

Drop of power voltage.

Defect of compressor capacitor.

Capacitor check.

Replacement.

Check of circuit breaker and fuse.

Gas leakage of feeler bulb of thermostat.

Check control switch.

	Fan only fails to start.
	Improper wiring.
Improper thermostat
setting
	Defect of fan motor
Loose terminal	capacitor.
connection
	Irregular motor
Improper wiring	resistance (Ω )
	Irregular motor
	insulation (Ω )
	Replacement of fan motor.

Irregular motor resistance (Ω )

Irregular motor insulation (Ω )

Replacement of compressor (Motor damaged).

Regular but fails to start.

Replacement of compressor. (Locking of piston, metal.)

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