Gently push on one of the fan blades.
Central air condenser fan not spinning.
At a 1 mechanical we ve provided homeowners in grand rapids and lansing with reliable and trustworthy hvac service since 1983.
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.
Run capacitor is weak or has failed.
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.
The dual run capacitor is defective.
Fans in the central a c both pull air out of the room to be conditioned and have humidity removed and also push chilled air through the vents throughout the house.
If you have a bad capacitor it may take a while for the fan blades to start spinning once you turn on the unit.
A capacitor stores up energy that provides power to your air conditioner s fans.
Check to make sure your breaker has not tripped.
Remove the service panel on the a c unit.
Find the start capacitor for the fan.
Condenser fan motor failure.
Inside your air conditioning unit the fans turn with the assistance of motors and capacitors.
It s located on the side of the building near the outdoor a c unit.
A blocked air filter may be the culprit in why your air conditioning s fan is not spinning when your air conditioner s filter is dirty filthy and clogged air flow can t go through the filter and ice will begin to accumulate on it.
You have a bad fan motor and or bad start capacitor.
While each component in a central air conditioner is critical quite simply the unit will not work if the fan is not running.
Check the float switch.
However your capacitor can go bad for various reasons and stop working properly which will force one of your system s fans to stop spinning.
The contactor may be faulty.
5 common reasons why your central air conditioner fan is not working.
One frustrating scenario the hvac technicians at a 1 mechanical heating cooling have seen many times is when an air conditioner s condenser fan stops spinning even though the actual system is running.
Understanding the parts of your ac unit.
The capacitor may have gone bad and therefore the fan won t start.
As a result this puts more stress on your unit s fan as well as the other parts of the machine.
If it starts spinning then the issue is the capacitor.
Shut off the power supply to the air conditioner at the disconnect or breaker panel.
Do not proceed if you re not sure you ve properly shut off the power.
A start capacitor is an electric device that gets the electric motor running at startup by providing a jolt of stored electrical energy.
