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11-3-4.Only compressor does not run.
Check compressor motor
•
capacitor.
Measure resistance of
•
compressor motor winding.
Overload relay is working.
(CA,CB)
Temperature of compressor is
abnormally high.
Refrigerant gas shortage.
Rotor may be locked up.
(OLR 1 to 4)
YES
YES
YES
NO
35
Measure coil resistance of
power relay.
(PRA,PRB)
Charge refrigerant gas (R22).
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