Toshiba MMU-AP0091H Confirmation and check, Confirmation of error history, Procedure Description

Confirmation and check

When a error has occurred in the air conditioner, the check code and the indoor unit No. will appear on the display part of the remote controller.

The check code is only displayed during while the unit is operating.

If the display disappears, operate the air condi- tioner according to the following “Confirmation of error history” for confirmation.

Confirmation of error history

When a error has occurred on the air conditioner, the error history can be confirmed with the follow- ing procedure. (Up to 4 errors can be stored in the memory of the remote controller.)

The history can be confirmed from both operating status and stop status.

	CODE No.
UNIT	No.
R.C.	No.

Check code	Indoor unit No. in which
	an error has occurred

TEMP.		ON / OFF
2
TIMER SET	FAN	MODE
TIME	SWING/FIX	VENT
FILTER
RESET TEST SET CL	UNIT

3 1

47

Procedure	Description
	When pushing the SET and TEST buttons at the same time
	for 4 seconds or more, the following display will appear.
	If [Service check] is displayed, the mode enters into the		CODE No.
	change error history mode.
1
		UNIT No.
	• [01 : Order of error history] is displayed in CODE No.
		R.C. No.
	window.

•[Check code] is displayed in CHECK window.

•[Indoor unit address in which the error has occurred] is displayed in UNIT No.

	For every push of the	,	button used to set temperature, the trouble history stored in memory
	is displayed in order.
2	The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).
	CAUTION
	Do not push the CL button because all the error history of the indoor unit will be deleted.
3	After confirmation, push the TEST button to return to the normal display.

1.Check the error codes according to the above procedure.

2.Ask an authorized dealer or qualified service (maintenance) professional to repair or maintain the air conditioner.

3.More details of the service codes are explained in the Service Manual.