Attic Fan Won T Turn Off

Fan motor runs but not the blades if the motor is working but the fan blades are not moving the problem may be the belt.

Attic fan won t turn off.

Attic fan not turning on if the attic fan isn t turning on it could be an electrical issue a problem with the. 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. If the fan stops running the thermostat is the problem and should be replaced. All they do is suck hot air out of the attic and blow it outside.

I recently bought a house that has an attic fan on a thermostat that seems to run whenever the outside temperature gets above about 70. It may be a bad thermocouple but in any case the fan does not know when to shut off. In order to turn it off you have to crawl up to it an adjust the thermostat to the highest setting. If the fan continues to run make sure the wires are secure and not touching.

The house was constructed in 1958 and is 2x6 wood frame on 16 centers. Common attic fan problems and how to fix them. Attic fan won t turn off if the attic fan won t turn off raise the thermostat setting up. Installed correctly this will vent heat in the summer and moisture in the winter delivering a truly 24 7 365 solution to all your attic ventilation issues.

It s obviously a thermostat problem. They are mounted on openings in the wall that vent to the outside. Attic fans don t ever connect to house vents. Pull the cover off the thermostat then remove the mounting screws holding the thermostat to the sub plate and pull the thermostat off.

If the fan still won t turn off check the power source to make sure it has been wired correctly. Sometimes my blower fan won t shut off for a while. If there is any damage to the belt replace it with a new one. They are hard wired and have a thermostat switch on them.

The attic has about 2 3 of blown in cellulose is pitched i don t know the pitch but it s about average for a typical suburban house and has a gable vent on each end l shaped house. Every attic fan should have a switch in the attic but if you don t see one turn it off at the circuit breaker before you climb up in the attic. The best solution is to add a continuous ridge and soffit ventilation system. You need someone competent to repair it properly.

It will work for half the day and then the other half of the day it will not shut off if i flip. On 2019 12 28 by jamie.