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Test in resistance.
TOOL: Multimeter.
Test the resistance of
circuit)or∞ （open circuit）
Familiar error:
1）Compressor motor lock.
2）Discharge pressure value approaches static pressure value .
3）Compressor motor winding abnormality.
Notes：
1）Don't put a compressor on its side or turn over.
2) Please assembly the compressor in your air conditioner rapidly after removing the plugs. Don't place
the comp. In air for along time.
3）Avoiding compressor running in reverse caused by connecting electrical wire incorrectly.
4）Warning! In case AC voltage is impressed to compressor, the compressor performance will below
because of its rotor magnetic force decreasing.
4. INDUCTANCE
Familiar error:
1）Sound abnormality
2）Insulation resistance disqualification.
5. STEP MOTOR
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Test in resistance.
TOOL: Multimeter.
Test the resistance of winding. The stepper motor is fault if the resistance of winding 0(short circuit)or∞
（open circuit）.
DC-� INVERTER AIR CONDITIONER TECHNICAL&SERVICE MANUAL
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the winding. The compressor is fault if the resistance of winding 0(short
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