41
12-3-4.Only compressor does not run.
Measure resistance of
compressor motor winding.
•
NO
Check compressor motor
capacitor.
•
YES
YES
YES
Overload relay is working.
Refrigerant gas shortage.
Charge refrigerant gas (R407c).
Temperature of compressor is
abnormally high.
Rotor may be locked up.
(OLR 1 to 4)
(CA,CB)
Measure coil resistance of
power relay. (PRA,PRB)
