Full Product Manual

16.CHECKING COMPONENTS

DC Inverter

Controller

Thermal Sensor

Compressor

Power

Test in resistance.

TOOL: Multi-meter.

Test the resistance of the winding. The compressor fails if the resistance of winding is 0

(short circuit)or∞(open circuit).

Familiar error:

1) Compressor motor lock.

2) Discharge pressure value approaches static pressure value.

3) Compressor motor winding abnormality.

NOTE：

1) Don’t put a compressor on its side or turn over.

2) Please assemble t

he compressor in your air conditioner rapidly after removing the plugs.

Don’t place the comp. in air for a long time.

3) Avoid compressor running in reverse caused by connecting electrical wire incorrectly.

4) Warning! In case AC voltage is impressed to compressor, the compressor performance will

decrease because of its rotor magnetic force decreasing.

3. Inductance

Familiar error:

1）Sound abnormality

2）Insulation resistance disqualification.

Check for continuity of fuse on PCB ASS’Y.

Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse from the

PCB ASS’Y.Check for continuity by a multimeter as shown below.

Fuse

PCB Ass'Y

Fuse

4. Fuse