Toshiba RAS-10SAX, RAS-10SKX, RAS-10SK-E, RAS-10SA-E service manual Condition Code Status

				Table 9-2-4
Block level			Diagnosis function
Check		Check		Air			Judgment and action
	Block		Symptom	Conditioner	Condition
code		code
				status
	Indoor PC		Thermo sensor	Continued	Indicated when	1. Check thermo sensor.
	board		short/break.	operation	detected abnormal	2.	If it is OK, check PC board.
			Heat exchanger	Continued	Indicated when	1.	Check heat exchanger
			sensor short/break.	operation	detected abnormal		sensor.
						2.	If it is OK, check PC board.
			Indoor fan lock,	All off	Indicated when	1.	Disconnect the power plug
			abnormality of		detected abnormal		from AC outlet, and pull out
			indoor fan.				the connector (CN10) for the
							motor, then connect the plug
							of AC power cord again and
							turn the power on.
						2. Check the voltage between
							pin 1 and 2 of the connector
							(CN10).
						3.	If the output voltage is 35V,
							PC board is OK, check
							motor.
			Abnormality of	All off	Indicated when	Replace PC board.
			other indoor unit PC		detected abnormal
			board.
	Refrigerant		1) Gas shortage.	All off	Indicated when	1.	Check gas quantity.
	system		(gas leak)		detected abnormal		(check gas leakage)
			2) Other refrigerant			2.	If it is OK, check heat
			cycle trouble.
							exchanger sensor.
			3) Heat exchanger			3.	If heat exchenger sensor is
			sensor off/break/
							OK. check overload relay and
			short.
							thermostat for compressor.
			4) Overload relay			4.	If overload relay is OK, check
							refrigerant cycle.
						5.	If refrigerant cycle is OK,
							check PC board.

Contents detected by the check codes “ ” to “ ” are stored in memory of the microcomputer even if the power supply is turned off. Therefore, contents of operations in the past are all displayed.

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