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10-3-4. Only compressor does not run.
• Check compressor motor
capacitor.
• Measure resistance of
compressor motor winding.
• Measure Power supply
voltage.
The voltage is too low.
• Measure resistance of power
relay.
Overload relay is working.
(Either OLR T or OLR A)
(C1)
Temperature of compressor
is abnormally high.
Refrigerant gas shortage.
No
Rotor may be locked up.
(PR)
YES
YES
YES
NO
64
Charge refrigerant gas (R407c).
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Troubleshooting
