7-3. Some part of air conditioner does not operate.
7-3-1. Only fan does not run.
7-3-2. Electric heater does not work.
• Measure resistance of electric
heater winding.
Blown
• Check continuity for thermal
fuse in heater assy.
Replace it.
• Check PCB Ass'y. (Controller)
• Check to see if thermal limit in
heater assy is opened or
closed.
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 fan motor
winding.
(FMO or FMI)
• Check fan motor capacitor.
(FMO or FMI).
• Check PCB Ass'y . (Controller)
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