Troubleshooting By Check Display On Remote Controller; In Case Of Main Remote Controller (Rbc-Amt21E); Confirmation And Check; Confirmation Of Error History - Toshiba Super MMU-AP0091H Service Manual

9-3. Troubleshooting by Check Display on Remote Controller

In case of main remote controller (RBC-AMT21E)

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

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.
Procedure
When pushing
If [Service Check] is displayed, the mode enters in the error history mode.
• [01: Error history order] is displayed in code number window.
1
• [Check Code] is displayed in check code window.
• [Indoor unit address with error] is displayed in UNIT No.
Every pushing temp. set
played in order.
The numbers in item code indicates item code [01] (Latest) to [04] (Oldest).
2
CAUTION
Do not push [CL] button because all the error histories of the indoor unit will be deleted.
3
After confirmation, push
SET and buttons simultaneously for 4 seconds or more, the below display appears.
/
button to return to the usual display.
Check code
3
SET
1
Description
buttons, the error histories stored in the memory are dis-
133
CODE No.
UNIT No.
R.C. No.
Indoor unit No. in which
an error occurred
UNIT
CL
CODE No.
UNIT No.
R.C. No.
2