9-3. Some part of air conditioner does not operate.
9-3-1. Only indoor fan does not run.
9-3-2. Only flap motor does not run.
9-3-3. Function of outdoor fan speed control does not work properly. (For C122 model)
Refer to "8-9 Outdoor Fan Speed Control ".
9-3-4. Only outdoor fan does not run.
Fan cannot
be turned.
•
Check fan rotation.
Turn fan gently once or twice by
hand.
•
Check fan casing
foreign matter on
inside.
Fan motor winding
burnout or foreign
matter in bearings.
Remove foreign
matter or repair.
Repair or replace.
OK
•
Measure resistance of indoor fan
motor winding.
•
Check fan motor capacitor.
OK
•
Measure resistance of indoor fan
motor winding.
•
Check fan motor capacitor.
•
Check connectors to indoor PCB Ass´y.
•
Check thermostat in outdoor unit.
(23S)
•
Measure resistance of flap motor
winding and connector.
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 winding
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.
OK
•
Measure resistance of indoor fan
motor winding.
•
Check fan motor capacitor.
NO
•
When fan speed is changed, does
applied voltage between lead wires
BRN and WHT change as well ?
•
PCB Ass'y is defective.
•
Check connectors to PCB Ass´y.
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