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8
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 controller.
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.
UNIT
SET
CL
3
2
1
UNIT No.
CODE No.
R.C. No.
Check code
Indoor unit No. in which
an error occurred
UNIT No.
CODE No.
R.C. No.
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.
3. More details of the service code are explained in Service Manual.
Procedure
1
2
3
Description
When pushing [SET] 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.
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
CL
button because all the trouble history of the indoor unit will be deleted.
After confirmation, push button to return to the usual display.