Locate the thermostat casing and open it using a screwdriver.
Attic fan test.
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.
If the motor is working but the fan blades are not moving the problem may be the belt.
A fan that won t run is often caused by a failed motor or a bad thermostat.
How to test an attic fan motor and thermostat.
If there is any damage to the belt replace it with a new one.
Step 2 test the thermostat.
I test mine every year.
Step 1 test the fan motor.
The replacement is quite simple and straightforward.
Once done test that the motor still works by plugging the motor into an extension cord that is connected to an outlet.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken.
You d need an attic fan rated at approximately 720 cfm.
The smart model is a gable mount meaning it simply mounts plugs in with its attached 20 foot power cord and it s ready to go.
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.
The amtrak 70 watt solar attic fan is one of the most impressive attic fans that i have found while looking for products to review.
How to test a hardwired attic fan.
Fan motor runs but not the blades.
If the fan turns on the motor is still good.
I loved this ventilator because the 70 watt fan is a powerful fan that can cool a large space effectively.
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.
I read that venting is important.
It is built with high quality materials and durable motor.
Quietcool s smart gable mount attic fan is our top pick for its ease of use simple installation and maximum energy efficiency.
Intake vents located at the lowest part of the roof under the eaves allow cool.
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.
Turn the attic fan off and unplug the motor from the thermostat.