Toshiba RAV-SP404ATZ-E Operation of diagnostic function, Judgment and measures, after, series

			Operation of diagnostic function
Check code
							Judgment and measures
Indoor unit			Cause of operation	Status of	Condition
				air conditioner
before	after
3 series	4 series
		Discharge temp. error			Displayed when	1.	Check refrigerating cycle (Gas leak)
P03	P03	∗	Discharge temp. (TD) detected	Stop		2. Trouble of electronic expansion valve
					error is detected
			temperature over the specified temp.			3.	Check discharge temp. sensor (TD).
						1.	Check case thermostat and connector.
		Case thermostat operation				2.	Check gas leak, recharge
P04	H04			Stop	Displayed when	3. Check whether the service valve is fully opened.
		∗	Abnormal overheat of compressor
					error is detected
						4.	Check PMV (Pulse Motor Valve).
						5.	Check broken pipe.
	P05	Power supply voltage error		Stop	Displayed when	1. Check power supply voltage. AC198 to 264V
					error is detected
						1.	Check outdoor heat exchanger sensor (TL).
		High pressure protective operation				2.	Check indoor heat exchanger sensor (TC, TCJ).
		•	During cooling operation, outdoor			3.	Check full open of service valve.
	P20		temp. sensor (TL) detected	Stop	Displayed when	4. Check indoor/outdoor fan.
			temperature over specified temp.
					error is detected	5.	Check PMV (Pulse Motor Valve).
		•	During heating operation, indoor
						6.	Check clogging and short circuit of indoor/outdoor heat
			temp. sensor (TC, TCJ) detected
							exchanger.
			temperature over specified temp.
						7.	Overcharge of refrigerant. Recharge
					Displayed when	1.	Check lock of fan motor.
P22	P22	Outdoor fan system error		Stop		2. Check power supply voltage. AC198 to 264V
					error is detected
						3.	Check outdoor P.C. board.
						1.	When performing operation while taking-off compressor
P26	P26	Short-circuit error of compressor		Stop	Displayed when		wire, P26 error occurs. Check control P.C. board.
		driving device			error is detected	2. When performing operation while taking-off compressor
							wire, an error does not occur. (Compressor rare short)
P29	P29	Position detection circuit error		Stop	Displayed when	1. Check control P.C. board.
					error is detected

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