9-3. Troubleshooting Based on Information Displayed on
Remote Controller
Using main remote controller (RBC-AMT32UL)
(1) Checking and testing
When a problem 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
check code history by following the procedure
described below.
(2) Ckeck code history
The check code history access procedure is described below (up to four check code stored in memory).
Check code 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 check code history. This is
accompanied by the indoor unit No. to which the check code
history is related and a check code.
2 To check other check code history items, press the
button to select another check code.
Check code “01” (latest) Check code “04” (oldest)
Note: Check code history contains four items.
3 When the button is pushed, normal display is
restored.
REQUIREMENT
Do not push the
button as it would erase the whole check code history of the indoor unit.
How to read displayed information
Check code
Indoor unit No. in which
check code has occurred
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
13
321
2
Normal display is restored.
Steps to follow
012 345 67 89 AbC dEFHJL P
<7-segment display symbols>
<Corresponding alphanumerical letters>
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