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6
TROUBLESHOOTING
6-1. CAUTIONS ON TROUBLESHOOTING
(1) Before troubleshooting, check the followings:
1 Check the power supply voltage.
2 Check that the indoor/outdoor connecting wire is correct.
(2) Take care of the followings during servicing:
1 Before servicing the air conditioner, be sure to turn off the remote controller first to stop the main unit, and then turn
off the breaker.
2 When removing the indoor controller board, hold the edge of the board with care NOT to apply stress on the
components.
3 When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.
6-2. SELF-CHECK
Wired remote controller (Option)
ERROR CODE
TEMP.
ON/OFF
MENU
ON/OFF
BACK
MONITOR/SET
DAY
PAR-21MAA
CLOCK
OPERATION
Lead wire
ERROR CODE
FILTER
CHECK
TEST
ERROR CODE
CLEAR
Turn on the power.
Press the [CHECK] button twice.
Set address with [TEMP] button if system control is used.
Press the [ON/OFF] button to stop the self-check.
CHECK button
Address
TEMP. button
IC : Indoor unit
OC: Outdoor unit
Check code
– – – – : No trouble generated in the past.
F F F F : No corresponding unit.
Unit No.
Timer ON/OFF button
<To delete check code>
Display the error code on the self-check result display screen.
The address for self-check will blink when the
button is pressed twice within 3 seconds.
11
ON/OFF
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