Download TECHNICAL & SERVICE MANUAL SPLIT SYSTEM AIR

9-3. Some part of air conditioner does not operate.
9-3-1. Only indoor fan does not run.
• Check fan rotation.
Turn fan gently once or twice by
hand.
• Check fan casing
foreign matter on
inside.
Fan cannot
be turned.
Remove foreign
matter or repair.
Fan motor burnout
or foreign matter in
bearings.
• Measure resistance of indoor fan
motor winding.
Repair or replace.
• When fan speed is changed, does
applied voltage between lead wires
BRN and WHT change as well ?
OK
NO
• Check fan motor capacitor.
• PCB Ass'y is defective.
9-3-2. Only flap motor does not run.
• Measure resistance of flap motor
winding.
9-3-3. Function of outdoor fan speed control does not work properly. (For C121 models)
• Check thermostat in outdoor unit.
(23S)
Refer to "8-8 Outdoor Fan Speed Control ".
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