Six reasons your air conditioning fan may not be running.
Ac condenser fan blade not spinning.
Check the float switch.
One of the simplest explanations for an ac fan not spinning is a dead fan motor.
Do not proceed if you re not sure you ve properly shut off the power.
Most fan motors work overtime especially during the summer months.
A bad capacitor can t properly power your ac s fan meaning the fan can t spin.
A start capacitor is an electric device that gets the electric motor running at startup by providing a jolt of stored electrical energy.
Shut off the power supply to the air conditioner at the disconnect or breaker panel.
If your air conditioner fan is not spinning the problem could be a faulty belt.
No air coming out of vents is a sign that you may have a bad capacitor.
How to troubleshoot fix an ac fan not spinning.
It s located on the side of the building near the outdoor a c unit.
You have a bad fan motor and or bad start capacitor.
Condenser fan motor failure.
If you don t hear any sounds to indicate that the compressor is working and the fan isn t spinning the most common causes are a lack of power or a faulty compressor contactor.
If the condenser fan is running you will see the fan blade spinning at speed typically at 1725 rpm and you will feel air blowing out of the unit.
Another problem that may cause your air conditioner fan to not spin might be a belt that has either broken or became loose.
There s an unusual noise coming from the condenser unit when the fan rotates.
The capacitor may have gone bad and therefore the fan won t start.
The fan has completely stopped spinning.
Inside your air conditioning unit the fans turn with the assistance of motors and capacitors.
The dual run capacitor is defective.
Check to make sure your breaker has not tripped.
The fan won t stop spinning when you turn off the ac.
Your power could be out you have a dead capacitor a contactor is failing or your motor burnt out.
Additionally if your fan isn t working at all the cause could be entirely different reasons.
This heavy use results in a significant amount of wear and tear and eventually the motor will give out.
The contactor may be faulty.
Most homeowners are comfortable calling in an ac professional to troubleshoot the issue once they have a good idea of what might be going on.
Most of the air conditioning systems that use belts are outdated units.
Remove the service panel on the a c unit.
As we explain at burned out compressor if the condensing unit fan is not working the compressor itself may shut down or even be ruined by overpressure or over temperature.
Before you spend the money doing that try these simple solutions first.
Find the start capacitor for the fan.