Roof Fan Stopped Working

Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken.

Roof fan stopped working.

Over time wiring can break down or weaken which causes this problem. 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. You will want to use a circuit tester like ptw2993 to see if there is power getting to the fan. If there is any damage to the belt replace it with a new one.

Best of all whole house fans use only one tenth of the energy that air conditioning does. Fan motor runs but not the blades. How to troubleshoot a whole house fan. Roof vents with fans like the maxxfan roof vent w 12v fan ma00 04000k do not have a fuse anywhere in the fan itself.

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. By pulling in cooler air a whole house fan reduces or eliminates the need for air conditioning.