Toshiba MMU-AP0121MH Troubleshooting by Check Display on Remote Controller, Procedure Description

7-3. Troubleshooting by Check Display on Remote Controller

In case of wired remote controller (RBC-AMT31E)

1. Confirmation and check

When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller.

The check code is displayed while the air condi- tioner operates.

Check code

If the display disappeared, operate the air conditioner and check the error based upon the following “Confirmation of error history”.

CODE No.

UNIT No.

R.C. No.

Indoor unit No. in which an error occurred

2.Confirmation of error history

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

(Up to 4 error histories are stored in memory.)

This history can be confirmed from either operat- ing status or stop status.

2

3

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

1

Procedure			Description
	When pushing SET and TEST buttons simultaneously for 4 seconds or more, the below display appears.
	If [Service Check] is displayed, the mode enters in the error history mode.
1	• [01: Error history order] is displayed in code number window.				CODE No.
	• [Check Code] is displayed in check code window.			UNIT No.
	• [Indoor unit address with error] is displayed in UNIT No.			R.C. No.
	Every pushing temp. set	/	buttons, the error histories stored in the memory are displayed in
	order.
2	The numbers in item code indicates item code [01] (Latest) to [04] (Oldest).
	CAUTION

Do not push [CL] button because all the error histories of the indoor unit will be deleted.

3 After confirmation, push TEST button to return to the usual display.

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