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8-3. Troubleshooting based on information displayed on remote controller
Using main remote controller (RBC-AMT32E)
(1) Checking and testing
When a trouble occurs to an air conditioner, a
check code and indoor unit No. are displayed on
the display window of the remote controller.
Check codes are only displayed while the air
conditioner is in operation.
If the display has already disappeared, access
trouble history by following the procedure
described below.
(2) Trouble history
The trouble history access procedure is described below (up to four troubles stored in memory).
Trouble history can be accessed regardless of whether the air conditioner is in operation or shut down.
<Procedure> To be performed when system at rest
1
Invoke the SERVICE CHECK mode by pressing the
+
buttons simultaneously and holding for at least
4 seconds.
The letters "
SERVICE CHECK" light up, and the check code
01
"
" is displayed, indicating the trouble history. This is
accompanied by the indoor unit No. to which the trouble history
is related and a check code.
2
To check other trouble history items, press the
button to select another check code.
01
Check code "
" (latest) → Check code "
Note: Trouble history contains four items.
3
When the
button is pushed, normal display is
restored.
NOTE
Do not push the
button as it would erase the whole trouble history of the indoor unit.
How to read displayed information
<7-segment display symbols>
<Corresponding alphanumerical letters>
Check code
04
" (oldest)
– 49 –
Indoor unit No. in which
trouble has occurred
Normal display is restored.
Steps to follow
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Troubleshooting
