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.
Attic fa stopped working is it the thermostat.
An attic fan is a great way to keep your home cool during the hot summer months.
But if power is preasent then the thermastat is the second stop.
In some fans the fuse is hidden inside one of the short fiberglass sleeves gold color.
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.
Check thermostat if it has one.
Well could be a breaker or a gfi tripped.
Switch off the power of the attic fan and remove the power cord.
Locate the thermostat casing and open it using a screwdriver.
Thermostat might be equipped with fuse if.
It turns the attic fan on when it reaches a certain temperature ranging from 90 degrees f to 120 degrees f.
After the attic fan has been in use for some time it may develop problems.
The attic fan works by removing the superheated air from your attic so the air in your entire home can circulate and cool down.
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.
Could be thermostat motor motor capacitor if it uses one electrical switch bird or bees nest stopping the fan from turning wire connection came loose squirrel chewed wires etc.
If thermostat equipped work temperature setting over full range a few times.
An attic fan thermostat is an automatic monitoring mechanism that switches the attic fan on and off according to the changing temperature in the attic.
I would go with an hvac contractor an electrician might be able to determine the cause but would not likely have the parts or routinely deal in them.
Check circuit breaker to see if it is tripped.
The replacement is quite simple and straightforward.