Troubleshooting Based On Information Displayed On Remote Controller - Toshiba MCY-MUG0401HSW-E Service Manual

9-3. Troubleshooting based on information displayed on
remote controller
Using main remote controller (RBC-ASCU11*)
<RBC-ASCU11*>
(1) Checking and testing
If a problem occurs with the air
conditioner, the OFF timer indicator
alternately shows the check code
and the indoor Unit No. in which the
problem occurred.
(2) Troubleshooting history and confirmation
You can check the troubleshooting history with the following procedure if a problem occurs with the air
conditioner.
(The troubleshooting history records up to 4 incidents.)
You can check it during operation or when operation is stopped.
• If you check the troubleshooting history during OFF timer operation, the OFF timer will be canceled.
Procedure
1 Push the OFF timer button for over 10 seconds and the indicators
appear as an image indicating the troubleshooting history mode has
been entered. If [ Service check] is displayed, the mode enters in
the troubleshooting history mode.
• [01: Order of troubleshooting history] appears in the temperature
indicator.
• The OFF timer indicator alternately shows the [check code] and
the [indoor Unit No. ] in which the problem occurred.
2 Each time the setting button is pushed, the recorded
troubleshooting history is displayed in sequence. The
troubleshooting history appears in order from [01] (newest) to [04]
(oldest).
In the troubleshooting history mode, DO NOT push the Menu button
for over 10 seconds, doing so deletes the entire troubleshooting
history of theindoor unit.
3 After you have finished checking, push the ON/OFF
button to return to the regular mode.
• If the air conditioner is operating, it remains operated even after
the ON/OFF button has been pushed.To stop its operation, push the
ON/OFF button again.
How to read displayed information
<7-segment display symbols>
<Corresponding alphanumerical letters>
CAUTION
Check code
Description of operation
168
Indoor unit No. in which
fault has occurred
1 2 3