Toshiba RAV-SM802XT-E, RAV-SM802AT-E, RAV-SM562AT-E service manual Operation

							FILE NO. SVM-06012
			Table 9-2-3
		Operation of diagnostic function					Judgement and action
Check code		Symptom	Unit status	Condition
	Inverter over-current protective circuit		All stop	Displayed when	1.	Inverter immediately stops even if restarted.
	operates.			error is detected		•	Compressor rare short
	(For a short time)				2.	Check IPDU.
						•	Cabling error
	Error on current detection circuit		All stop	Displayed when	1.	Compressor immediately stops even if restarted.
	•	Current value is high at AC side even		error is detected		: Check IPDU.
	•	while compressor stops.			2.	Phase-missing operation of power supply
		Phase of power supply is missed.				•	Check power voltage of R, S, T.
	Coming-off, disconnection or short of		All stop	Displayed when	1.	Check outdoor temp sensor (TE, TS).
	outdoor temp sensor			error is detected	2.	Check CDB.
	Coming-off, disconnection or short of		All stop	Displayed when	1.	Check outdoor temp sensor (TD).
	outdoor temp sensor			error is detected	2.	Check CDB.
	Compressor drive output error		All stop	Displayed when	1.	Abnormal overload operation of refrigerating
	• Tin thermistor temp, Tin error			error is detected		cycle
		(IPDU heat sink temp. is high.)			2.	Loosening of screws and contact error of IPDU
	•	Communication error between IPDU				and heat sink
		Connector coming-off between CDB and			3.	Cooling error of heat sink
		IPDU			4.	Check cabling of CDB and IPDU.
	Compressor does not rotate. (Over-current		All stop	Displayed when	1.	Compressor error (Compressor lock, etc.)
	protective circuit works when constant time			error is detected		: Replace compressor.
	passed after activation of compressor.)				2.	Cabling trouble of compressor (Phase missing)
	Discharge temp error		All stop	Displayed when	1.	Check refrigerating cycle. (Gas leak)
	•	Discharge temp over specified value was		error is detected	2.	Error of electron control valve
		detected.			3.	Check pipe sensor (TD).
	Compressor breakdown		All stop	Displayed when	1.	Check power voltage. (AC200V±20V)
	•	Operation frequency lowered and stops		error is detected	2.	Overload operation of refrigerating cycle
		though operation had started.			3.	Check current detection circuit at AC side.
	High-voltage protection error by TE sensor		All stop	Displayed when	1.	Overload operation of refrigerating cycle
	•	TE temp over specified value was		error is detected	2.	Check outdoor temp sensor (TE).
		detected.
	DC outdoor fan motor error		All stop	Displayed when	1.	Position detection error
	•	IDC operation or lock was detected by		error is detected	2.	Over-current protection circuit operation of
		DC outdoor fan driving.				outdoor fan drive unit
						•	Check CDB.
						•	Refer to Judgment of outdoor fan.
	Error on IPDU position detection circuit		All stop	Displayed when	1.	Position detection circuit operates even if driving
				error is detected		by removing 3P connector of compressor.
						•	Replace IPDU.
	Coming-off, disconnection or short of		Operation	Displayed when	1.	Check outdoor temp sensor (TO).
	outdoor temp sensor		continues.	error is detected	2.	Check P.C. board.

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