5 common reasons why your central air conditioner fan is not working.
Roof hvac unit smoking fan not working.
If you believe that the ac s not working or you re getting little or no cold air check these three things first.
Check your outdoor unit for signs of water if the fan is still not turning on.
Additionally if your fan isn t working at all the cause could be entirely different reasons.
It s possible but not recommended unless you are completely comfortable with and have experience working with the electrical components of your a c unit.
If several registers were closed or the filter was clogged the reduced airflow could have caused the evaporator coil to ice up and stop cooling your home.
It may feel warm to the touch but if it is noticeably or excessively hot there is likely a problem that needs to be addressed.
The fan won t stop spinning when you turn off the ac.
Reset the air conditioner at the circuit.
Adjust the thermostat setting 3 to 5 degrees below the room temperature.
Your power could be out you have a dead capacitor a contactor is failing or your motor burnt out.
Not having the fan blades installed in a correct position can result in a lack of airflow and cause the motor to overheat.
Your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection.
They supply you with filters that remove as many particulates as possible in your type of system.
Without a good duct cleaning your hvac system will kick up the harmful particulates in the duct work every time the fan runs.
This shows you how to troubleshoot and fix a heat pump or ac unit that is not working.
If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working.
Then go outside and clean off the condenser coils photo 2.
If the motor has not been lubricated or the unit kept clean this can lead to overheating problems.
Then be sure the furnace filter is clean.
Locate an open register and check for cool air after waiting for 30 seconds.
While the hvac techs are at your home they can inspect your entire hvac system for dust and debris from smoke exposure.
Attic fan not turning on.
In this case the outdoor fan is not running due to a bad capacitor.
You can easily tell if your condenser fan motor is overheating by placing your hand on top of the unit.
Ac not working or cooling.
Make sure all the registers in the house are wide open.
How to troubleshoot fix an ac fan not spinning.
If your system has frozen up turn off your thermostat for one to three hours to see if it unfreezes.
Check under the unit and the cold exterior surface of the indoor coil enclosure.
Start with the easy fixes.
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.