Check code
Indoor unit No. in which
trouble
has occurred
3
2
1
2
Normal display is restored.
Steps to follow
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
3 1
9-3. Troubleshooting based on information displayed on remote
controller
<RBC-AMT
>
(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
check code history by following the procedure
described below.
(2) Trouble history
The trouble history access procedure is described below (up to four check codes 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 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.
Check code “01” (latest)
o
Check code “04” (oldest)
Note: Trouble history contains four items.
3
When the
button is pushed, normal display is
restored.
CAUTION
Do not push the button as it would erase the whole trouble history of the indoor unit.
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Summary of Contents for MMK- UP0301HP Series
Page 16: ...3 WIRING DIAGRAM 16 ...
