Fan motor runs but not the blades.
Attic fan test.
I test mine every year.
I read that venting is important.
Switch off the power of the attic fan and remove the power cord.
A fan that won t run is often caused by a failed motor or a bad thermostat.
You d need an attic fan rated at approximately 720 cfm.
Quietcool s smart gable mount attic fan is our top pick for its ease of use simple installation and maximum energy efficiency.
It is built with high quality materials and durable motor.
If there is any damage to the belt replace it with a new one.
The replacement is quite simple and straightforward.
Locate the thermostat casing and open it using a screwdriver.
If you notice that the attic fan is not switching on or off according to temperature variation it indicates that the thermostat is no longer functioning properly.
Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken.
I loved this ventilator because the 70 watt fan is a powerful fan that can cool a large space effectively.
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.
An attic fan used for venting pushes the hot air out the roof space so if it isn t replaced from outdoors you get depressurization.
Once done test that the motor still works by plugging the motor into an extension cord that is connected to an outlet.
You should test your attic fan annually and preferably in the spring time first few days in of.
Turn the attic fan off and unplug the motor from the thermostat.
How to test an attic fan motor and thermostat.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
How to test a hardwired attic fan.
Step 2 test the thermostat.
Step 1 test the fan motor.
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.
Intake vents located at the lowest part of the roof under the eaves allow cool.
If you have 1 200 cubic feet of attic the calculation is 1 200 x 0 6 720.
If the fan turns on the motor is still good.
