Attic Vent Fan Not Working

Fan motor runs but the blades don t move sometimes you face an issue where the attic fan s motor comes on but the fan.

Attic vent fan not working. Locate the thermostat casing and open it using a screwdriver. Fan problems if there are not enough soffit gable or ridge vents a powerful attic exhaust fan can pull the air from your home. Attic fan not turning on if the attic fan isn t turning on it could be an electrical issue a problem with the. If the motor is working but the fan blades are not moving the problem may be the belt.

If there is any damage to the belt replace it with a new one. The underside of the roof deck can get very hot so hot you can t keep your hand on it. Strong attic fans can actually back draft furnaces or water heaters by pulling combustion gases out of their burnersand. How to test an attic fan motor and thermostat.

Some of it will go directly into the attic air by conduction but that s a small amount because air isn t a good conductor. Switch off the power of the attic fan and remove the power cord. Even though the fan is on a thermostat switch chances are likel that there will be a standard on off switch. Ours was wired to a light switch in the attic.

Last but not least it could be the fan motor or bearing is out and the fan needs to be replaced. The replacement is quite simple and straightforward. Check to see if there is a switch for the fan. A fan that won t run is often caused by a failed motor or a bad thermostat.

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. Good attic ventilation is excellent for. At temperatures of 150 f or more that s a lot of heat sitting there in that plywood or osb. Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken.