Roof Fan Stopped Working

If there is any damage to the belt replace it with a new one.

Roof fan stopped working.

Over time wiring can break down or weaken which causes this problem. You will want to use a circuit tester like ptw2993 to see if there is power getting to the fan. 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. Fan motor runs but not the blades.

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. Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken. If the motor is working but the fan blades are not moving the problem may be the belt. By pulling in cooler air a whole house fan reduces or eliminates the need for air conditioning.

Electricity to fan not working if after flipping the breaker and testing a couple different outlets you discover that the issue is electric rather than in the fan itself you will likely need to call in an electrician to take care of it. How to troubleshoot a whole house fan.