9-3-4. Only outdoor fan does not run.
Fan cannot
• Check fan rotation.be turned. Turn fan gently once or twice by
hand.
•Measure resistance of indoor fan motor winding.
OK
• Check fan motor capacitor.
•Check fan casing foreign matter on inside.
Fan motor burnout or foreign matter in bearings.
Remove foreign matter or repair.
Repair or replace.
9-3-5. Only compressor does not run.
•Check compressor motor capacitor.
•Measure resistance of compressor motor winding.
•Measure Power supply voltage.
The voltage is too low.
No
Overload relay is working.
YES
Temperature of compressor is abnormally high.
YES
Refrigerant gas shortage.
NO
Rotor may be locked up.
•Measure resistance of PTC thermistor.
YES
Charge refrigerant gas (R22).
•Measure resistance of power
relay.(PR)
60
