Toshiba MMU-AP0071YH Troubleshooting, Confirmation and check, Confirmation of error history

9 TROUBLESHOOTING

Confirmation and check

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

The check code is only displayed during the operation.

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

	CODE No.
	UNIT No.
	R.C. No.
Check code	Indoor unit No. in which
	an error occurred

Confirmation of error history

When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure.

(The error history is stored in memory up to 4 errors.)

This history can be confirmed from either operating	3
status or stop status.

UNIT

SET CL

1

2

Procedure		Description
	When pushing [SET] and	buttons simultaneously for 4 seconds
	or more, the right display appears.
	If [Service Check] is displayed, the mode enters in the error history				CODE No.
1	mode.		UNIT No.
	• [01: Order of error history] is displayed in CODE No. window.
			R.C.	No.
	• [Check Code] is displayed in CHECK window.

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

	Every pushing	,	buttons, the error history stored in the memory is displayed in order.
2	The numbers in CODE No. indicates CODE No. [01] (Latest) → [04] (Oldest).
	CAUTION
	Do not push CL	button because all the error history of the indoor unit will be deleted.
3	After confirmation, push		button to return to the usual display.

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