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9-3-4. Only compressor does not run.
Check compressor motor
capacitor.
Measure resistance of
compressor motor winding.
Measure Power supply
voltage.
Is the voltage too low ?
Is overload relay (OLR)
working ?
Is temperature of compressor
abnormally high ?
Does refrigerant gas shortage ?
No
Rotor may be locked up.
49
Yes
Yes
Yes
No
Charge refrigerant gas (R22).
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- Unit Specifications
- Room Temperature Control
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Troubleshooting
