On IR wireless remote controller

The continuous buzzer sounds from receiving section of indoor unit. Blink of operation lamp

On wired remote controller

Check code displayed in the LCD. (Refer to the previous page, check code.)

• If the unit cannot be operated properly after the test run, refer to the following table to find out the cause.

 

Symptom

 

Cause

Wired remote controller

LED 1, 2 (PCB in outdoor unit)

 

PLEASE WAIT

For about 2

After LED 1, 2 are lighted, LED 2 is

•For about 2 minutes following power-on, op-

minutes after

turned off, then only LED 1 is

eration of the remote controller is not possible

 

power-on

lighted. (Correct operation)

due to system start-up. (Correct operation)

 

 

Only LED 1 is lighted.

•Connector for the outdoor unit’s protection

PLEASE WAIT Error code

 

device is not connected.

Subsequent to

LED 1, 2 blink.

•Reverse or open phase wiring for the outdoor

 

about 2 minutes

 

unit’s power terminal block (L1, L2, GR)

Display messages do not

after power-on

Only LED 1 is lighted.

•Incorrect wiring between indoor and outdoor

appear even when operation

 

LED 1 blinks twice,

units (incorrect polarity of S1, S2, S3)

switch is turned ON (operation

 

•Remote controller wire short

 

LED 2 blinks once.

lamp does not light up).

 

 

 

On the IR wireless remote controller with condition above, following phenomena take place.

No signals from the remote controller can be received.

OPE lamp is blinking.

The buzzer makes a short ping sound.

Note:

Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)

For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.

LED1 (power for microprocessor)

Indicates whether control power is supplied. Make sure that this LED is

 

always lit.

LED2 (power for wired remote controller)

Indicates whether power is supplied to the wired remote controller.

 

This LED lights only in the case of the indoor unit which is connected to the

 

outdoor unit refrigerant addresses “0”.

 

 

LED3 (communication between indoor and

Indicates state of communication between the indoor and outdoor units.

outdoor units)

Make sure that this LED is always blinking.

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Image 15
Mitsumi electronic PKA-A18HA4, PKA-A12HA4 Cause, Wired remote controller LED 1, 2 PCB in outdoor unit, For about

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