Specifications

Red LED

Green LED

4 time flashes

1 time flash

Outdoor unit

Did 63H1,operate?

Defective outdoor unit PCB

Replacement (Defective 63H1,

input circuit)

YES

At 63H1 operation

1. During cooling

• Is the outdoor unit fan motor operating?

• Is there no short circuit air circulation for thr outdoor

unit?

• Is there sufficient space for air inlet & outlet?

2. During heating

• Is the gas side service valve fully opened?

• Is the indoor unit heat exchanger thermistor detached

from the detector case?

• Is the filter clogged?

• Is the outdoor unit fan controlled by due to defective

63H2?

3. During colling/heating

• Is the refrigerant overcharge?

At 49C operation

During cooling/heating

• Isn't there insufficient refrigerant?

(Isn't there gas leakage?)

• Isn't there a missing phase (

phase)?

63H1, 49C operation

Red LED

Green LED

5 time flashes

1 time flash

Outdoor unit

Failure to open the service valve

This abnormality will be indicated only when the compressor is ON for the time after turning on the power. (Refer to page 51)