Some Part Of Air Conditioner Does Not Operate - Technibel MCAF92R5TA Technical Data & Service Manual

6-3. Some part of air conditioner does not operate.

6-3-1. Only indoor fan does not run.
• Check fan rotation.
Turn fan gently once or twice by
hand.
• Measure resistance of indoor fan • Measure resistance of indoor fan
motor winding. motor winding.
• Check fan motor capacitor. • Check fan motor capacitor.
6-3-2. Only flap motor does not run.
• Measure resistance of flap motor
winding.
6-3-3. Only outdoor fan does not run.
• Check fan rotation.
Turn fan gently once or twice by
hand.
• Measure resistance of outdoor fan
motor winding.
• Check fan motor capacitor.
Fan cannot
be turned.
OK OK
Fan cannot
be turned.
OK
• Check fan casing
foreign matter on
inside.
Fan motor burnout
or foreign matter in
bearings.
• When fan speed is changed, does
applied voltage between lead wires
BRN and WHT change as well ?
• PCB Ass'y is defective.
• Check fan casing
foreign matter on
inside.
Fan motor burnout
or foreign matter in
bearings.
33
Remove foreign
matter or repair.
Repair or replace.
NO
Remove foreign
matter or repair.
Repair or replace.