Why is my aircon fan blade not turning?
Mia Russell
Published Mar 17, 2026
Why is my aircon fan blade not turning?
Aircon Fan Motor – Check the fan motor for any defects by turning the blade by hand. If it does not turn freely, it means that the part’s motor bearings are worn out. If this is the case, it’s time to replace the part. If the blades are able to be turned, test it by checking the incoming power to the fan motor.
How does a dual shaft AC fan work?
Dual Shaft Fan Motor – Check the dual shaft fan motor or the circulation fan motor for any problems or defects. This part has two blades: one on each side of the motor. On one side, the fan blade works by drawing in outside air over the condensing coil. This process is done so the unit can successfully dissipate the heat.
What to do if your outdoor fan won’t turn on?
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When is the radiator fan supposed to run?
The fans are not supposed to run at all times…..the only time they will run is with the air conditioning on and when coolant temp reaches a predetermined amount. You said both fans are working properly with the a/c on so that tells me the fan motors are working properly.
Why is my air conditioner fan not running?
When an outside fan fails, the most likely cause is a capacitor issue. Capacitors store up the energy that powers the air conditioner’s fans. A capacitor may be used to start the fan and keep it running—as in a start/run capacitor. Some units also have dual capacitors that power you air conditioner’s fans, as well as your compressor.
Why is my AC unit not spinning outside?
So, you do some investigating and realize that even though the outside unit is buzzing, the fan isn’t spinning. While this is a fairly common problem, the underlying causes are varied. Typical reasons an outside fan might stop spinning include: When an outside fan fails, the most likely cause is a capacitor issue.
When do you need to replace an outdoor fan motor?
If the unit requires more extensive repairs, you may need to repair or replace the outdoor fan motor. After you repair your AC system, make it a point to have your local Sears air conditioning professional stop by on a yearly basis for a maintenance checkup.