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Under Ceiling Type
Installation Manual
Toshiba
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 control.
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.
„
Confirmation of error history
When a trouble occurred on the air conditioner, the 
trouble history can be confirmed with the following 
procedure. (The trouble history is stored in memory up 
to 4 troubles.)
The history can be confirmed from both operating 
status and stop status.
Procedure 
1
When pushing 
 and 
 buttons at the same time for 
4 seconds or more, the following display appears.
If [Service check] 
 is displayed, the mode enters in 
the trouble history mode.
• [01: Order of trouble history] is displayed in CODE 
No. window.
• [Check code] is displayed in CHECK window.
• [Indoor unit address in which an error occurred] is 
displayed in Unit No..
Procedure 
2
Every pushing of 
 button used to set 
temperature, the trouble history stored in memory is 
displayed in order.
The numbers in CODE No. indicate CODE No. [01
(latest) 
→ [04] (oldest).
REQUIREMENT
Do not push 
 button because all the trouble history 
of the indoor unit will be deleted.
Procedure 
3
After confirmation, push 
 button to return to the 
usual display.
1. Check the troubles according to the above 
procedure.
2. Ask an authorized dealer or qualified service 
(maintenance) professional to repair or maintain the 
air conditioner.
Check code
Indoor UNIT No. in 
which an error occurred
3
2
1
29-EN
+00EH99864801_00Ta.book  Page 29  Tuesday, November 24, 2009  5:40 PM