10-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER

<In case of trouble during operation>

When a malfunction occurs to the air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop.

<Malfunction-diagnosis method at maintenance service>

CHECK display

ON/OFF button

CHECK

ON/OFF

TEMP

FAN

AUTO STOP

[Procedure]

Refrigerant

1. Press the CHECK button twice.

• "CHECK" lights, and refrigerant

 

address "00" blinks.

address

 

 

• Check that the remote controller's

display

 

 

 

display has stopped before continuing.

Temperature

2. Press the temperature

• Select the refrigerant address of the

buttons.

indoor unit for the self-diagnosis.

button

 

Note: Set refrigerant address using the

 

 

 

 

outdoor unit’s DIP switch (SW1).

 

 

(For more information, see the

 

 

outdoor unit installation manual.)

CHECK button

MODE

VANE

AUTO START

CHECK

LOUVER

h

TEST RUN

 

min

SET

RESET CLOCK

3. Point the remote controller at the

HOURsensor on the indoor unit and button

press the HOUR button.

•If an air conditioner error occurs, the indoor unit's sensor emits an intermit- tent buzzer sound, the operation light flashes, and the error code is output.

(It takes 3 seconds at most for error code to appear.)

4. Point the remote controller at the • The check mode is cancelled. sensor on the indoor unit and

press the ON/OFF button.

To be continued to the next page.

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Mitsumi electronic PLA-A12AA MALFUNCTION-DIAGNOSIS Method by Remote Controller, Case of trouble during operation
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