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9-3-4. Only outdoor fan does not run.
9-3-5. Only compressor does not run.
•
Check compressor motor
capacitor.
•
Measure resistance of PTC
thermistor.
•
Measure resistance of
compressor motor winding.
•
Measure resistance of power
relay. (PR)
NO
YES
YES
Overload relay is working.
YES
Temperature of compressor
is abnormally high.
Refrigerant gas shortage. Charge refrigerant gas (R22).
Rotor may be locked up.
•
Measure Power supply
voltage.
The voltage is too low.
No
Fan cannot
be turned.
OK
•
Check fan rotation.
Turn fan gently once or twice by
hand.
•
Check fan casing
foreign matter on
inside.
Fan motor burnout
or foreign matter in
bearings.
Remove foreign
matter or repair.
Repair or replace.
•
Measure resistance of indoor fan
motor winding.
•
Check fan motor capacitor.
000-111 SM (18-68) 00.3.17 11:49 AM y[W 60