Toshiba MMU-AP0121MH - Manual (Page 49)

49
7-3. Troubleshooting by Check Display on Remote Controller
In case of wired remote controller (RBC-AMT31E)
CODE No.
UNIT No.
R.C. No.
Check code Indoor unit No. in which
an error occurred
3
2
1
ON / OFF
FAN
TEMP.
SWING/FIX TIME
MODE
VENT
UNIT SET CL
FILTER
RESET TEST
TIMER SET
Procedure
1
2
3
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.
• [01: Error history order] is displayed in code number window.
• [Check Code] is displayed in check code window.
• [Indoor unit address with error] is displayed in UNIT No.
Every pushing temp. set / buttons, the error histories stored in the memory are displayed in
order.
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.
After confirmation, push TEST button to return to the usual display.
CODE No.
UNIT No.
R.C. No.
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.