Toshiba RAV-SP1604AT8-TR Error mode detected by indoor unit, Cause of operation Status

Error mode detected by indoor unit

	Operation of diagnostic function
				Judgment and measures
Check	Cause of operation	Status of	Condition
code		air conditioner
	No communication from remote	Stop	Displayed when	1. Check cables of remote controller and communication adapters.
				• Remote controller LCD display OFF (Disconnection)
E03	controller (including wireless) and
		(Automatic reset)	error is detected
	communication adapter			• Central remote controller [97] check code
	The serial signal is not output from			1. Outdoor unit does not completely operate.
	outdoor unit to indoor unit.			• Inter-unit wire check, correction of miswiring
	• Miswiring of inter-unit wire
		Stop	Displayed when	• Check outdoor P.C. board. Correct wiring of P.C. board.
E04	• Defective serial sending circuit on
		(Automatic reset)	error is detected	2. When outdoor unit normally operates
	outdoor P.C. board			Check P.C. board (Indoor receiving / Outdoor sending).

•Defective serial receiving circuit on indoor P.C. board

E08	Duplicated indoor unit address			1.	Check whether remote controller connection (Group/Individual)
					was changed or not after power supply turned on
L03	Duplicated indoor master unit		Displayed when		(Finish of group construction/Address check).
		Stop			* If group construction and address are not normal when the
L07	There is group wire in individual indoor		error is detected		power has been turned on, the mode automatically shifts to
	unit.				address setup mode. (Resetting of address)
L08	Unset indoor group address
L09	Unset indoor capacity	Stop	Displayed when	1. Set indoor capacity (CODE No. (DN) = 11)
			error is detected
L30	Abnormal input of outside interlock	Stop	Displayed when	1. Check outside devices.
			error is detected	2.	Check indoor P.C. board.
	Float switch operation			1.	Trouble of drain pump
P10		Stop	Displayed when	2. Clogging of drain pump
	• Float circuit, Disconnection,
			error is detected	3.	Check float switch.
	Coming-off, Float switch contact error
				4.	Check indoor P.C. board.
				1.	Position detection error
P12	Indoor DC fan error	Stop	Displayed when	2. Over-current protective circuit of indoor fan driving unit operated.
			error is detected	3.	Indoor fan locked.
				4.	Check indoor P.C. board.
	4-way valve system error			1.	Check 4-way valve.
		Stop	Displayed when	2. Check 2-way valve and check valve.
P19	• After heating operation has started,
		(Automatic reset)	error is detected	3.	Check indoor heat exchanger (TC/TCJ).
	indoor heat exchangers temp. is
	down.			4.	Check indoor P.C. board.
P31	Own unit stops while warning is output	Stop	Displayed when	1.	Judge follower unit while header unit is [E03], [L03], [L07] or [L08].
		(Follower unit)		2.	Check indoor P.C. board.
	to other indoor units.		error is detected
		(Automatic reset)
F01	Coming-off, disconnection or short of	Stop	Displayed when	1.	Check indoor heat exchanger temp. sensor (TCJ).
	indoor heat exchanger temp. sensor			2. Check indoor P.C. board.
		(Automatic reset)	error is detected
	(TCJ)
F02	Coming-off, disconnection or short of	Stop	Displayed when	1.	Check indoor heat exchanger temp. sensor (TC).
	indoor heat exchanger temp. sensor			2. Check indoor P.C. board.
		(Automatic reset)	error is detected
	(TC)
F10	Coming-off, disconnection or short of	Stop	Displayed when	1.	Check indoor heat exchanger temp. sensor (TA).
	indoor heat exchanger temp. sensor			2. Check indoor P.C. board.
		(Automatic reset)	error is detected
	(TA)
F29	Indoor EEPROM error	Stop	Displayed when	1. Check indoor EEPROM. (including socket insertion)
	• EEPROM access error	(Automatic reset)	error is detected	2.	Check indoor P.C. board.
	Communication error between indoor	Stop		1.	Check indoor P.C. board.
E10	MCU		Displayed when
	• Communication error between fan	(Automatic reset)	error is detected
	driving MCU and main MCU
	Regular communication error between	Stop	Displayed when	1.	Check remote controller wiring.
E18	indoor aster and follower units and			2.	Check indoor power supply wiring.
		(Automatic reset)	error is detected
	between main and sub units			3.	Check indoor P.C. board.

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