Change Attic Fan Belt

With some basic tools you can replace the fan motor or.

Change attic fan belt.

Check to be sure the original belt s groove size fits the pulleys and make sure the bearings shafts and set screws are in good condition and secure. If you can get close enough with a tape measure get a measurement of the distance between the axles of the pulleys. After you realize that it s not an electrical or thermostat problem the chances of it being a problem with the motor are quite high. Also get a measurement of the diameter of each pulley exclude the lip on either side of where the belt runs you want the diameter of the portion the belt is pressed against when it s tightened.

Http amzn to 1tq17ky replacing and attic fan is easier than you might think. Cool attic whole house fan installation duration. Sometimes it works out more economical to replace the attic fan thermostat instead of repairing it. In theses older models fan belts are usually paired with other belts that together form a v shape around your drive pulleys and gears.

Inspection start by inspecting the existing belt motor fan and pulleys. A broken fan belt stops the motor from engaging the fan blades and must be replaced if the attic fan is to continue being used. Attic ventilation fans do. This fan blade kit includes 4 blades a spider hub and screws and locking nuts to successfully assemble and replace your existing whole house fan blade assembly.

This fan blade kit is compatible with fan model cx24bd2spd. How to replace an attic ventilation fan. Then use the distance between the axles times 2 plus 1 2 the circumference of each. Replace a attic fan.

For use only with cool attic 24 in. Fan belts are more commonly found in vehicles built before the 1990 s when serpentine belts started to replace them. To replace a broken fan belt remove the belt and substitute a functional one in its place. An attic fan draws hot air out of the top of a home and vents it outside.

Attic fans were originally installed with the primary purpose to exhaust the hot humid air from attics and attic crawlspaces. This attic fan motor is the most expensive repair for attic exhaust fans. Belt driven whole house fans.