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12
TROUBLESHOOTING
6
6-1. Cautions on troubleshooting
(1) Before troubleshooting, check the followings:
1
Check the power supply voltage.
2
Check the indoor/outdoor connecting wire for mis-wiring.
(2) Take care the followings during servicing.
1
Before servicing the air conditioner, be sure to first turn off the remote controller 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
6-2-1. Wired remote controller
1
Turn on the power.
2
Press the [CHECK] button twice.
3
Set refrigerant address with [TEMP] button if system control is used.
4
Press the [ON/OFF] button to stop the self-check.
˚C
˚C
SIMPLE
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK
DAY
MONITOR/SET
CLOCK
ON/OFF
B
C
A
E D
A
CHECK button
B
Refrigerant address
C
TEMP. button
D
IC:Indoor unit
OC:Outdoor unit
E
Check code
RES
ET
TOO
TOO
COOL
AUTO
COOL
DRY
HEAT
FAN
VANE
SELECT
TIME
ON/OFF
TOO
WARM
TOO
COOL
h
1
Turn ON the power.
2
During pressing both the MODE SELECT button and TOO COOL button on the
remote controller at the same time, press the RESET button.
3
At first, release the RESET button.
4
And release the other two buttons since all LCD in operation display section of the
remote controller is displayed after 3 seconds.
5
Transmit the signal of remote controller, pressing OPERATE/STOP (ON/OFF)
button on the remote controller
.
(The above procedure allows OPERATION INDICATOR lamp to indicate the fail-
ure-mode.)
6
Transmit the signal of remote controller, pressing OPERATE/STOP (ON/OFF)
button to stop the self-check.
The following indication
applies regardless of shape
of the indicator
.
OPERATION INDICATOR lamp
6-2-2. Wireless remote controller
OC320-1.qxp 05.2.24 8:52 AM Page 12
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