Toshiba RAV-SM560XT-E 10-4Compressor does not operate, Primary check, Inspection procedure

10-4 Compressor does not operate.

<Primary check>

(1)Is the preset temperature higher than the room temperature in cooling operation?

(2)Is the crossover cable connected properly?

<Inspection procedure>

-Cooling only model-

Turn on power supply.

Does OPERATION lamp blink?

YES

Does miniature relay RY04

switch on and off due to temperature changes?

YES

Is it possible to detect

AC 220 − 240 V between

2and 3 on the terminal block?

YES

Are all of compressor cords normal?

YES

Is compressor motor

winding normal? (Check winding resistor.)

YES

NO							Refer to 9-6-1 Power
							can not be turned on .
NO	Is resistance value of thermo			NO	Thermo sensor or heat
	sensor (TA) and heat exchanger				exchanger sensor
	sensor (TC) normal?					is defective.
			YES
	Microcontroller is defective.						Replace thermo
							sensor or heat
NO							exchanger sensor.
	Miniature relay RY04 is defective.
							Replace P.C. board.
NO
							Rewire or replace
NO		Compressor is defective.					defective cords.
							Replace compressor.

Is capacitor for		NO	Capacitor is defective.
compressor normal?
	YES
		NO
Is overload relay normal?			Overload relay is defective.
	YES
		NO
Does compressor start?			Compressor is defective.
	YES
Does compressor stop
after a while?
	YES
		NO
Is gas quantity normal?			Gas shortage (Gas leak)
(Check gas pressure.)
	YES
Compressor is defective.
	YES

Replace capacitor.

Replace overload relay.

Replace compressor.

Supply gas.

Replace P.C. board.

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