Attic Fan Thermostat Not Working

Attic fan not turning on.

Attic fan thermostat not working.

Unless you are qualified to do electrical troubleshooting if the breaker for that circuit is not tripped and the power switch is on you need an expert. Little or no airflow. 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.

All of a sudden that attic fan isn t needed anyway. The replacement is quite simple and straightforward. Switch off the power of the attic fan and remove the power cord. 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.

You could get up there through the attic and check the blade is not obstructed will spin freely and look for any sign of burning or smoking. Why won t it stop running. If the motor is working but the fan blades are not moving the problem may be the belt. We are on our second attic fan but it won t stop running.

If there is any damage to the belt replace it with a new one. Btw we don t have a switch installed for it do we need to have a switch installed. Adding an attic fan may help to lower the ambient temperature in the attic but it s not an ideal solution. The big complaint that leads to an attic fan request is usually a hot second floor which can largely be mitigated by air sealing the attic and installing a generous bit of insulation drastically reducing conduction and convection.

If you observed that the attic fan is not switching off and on at the preset temperatures the attic fan thermostat might not be functioning properly and you might need to replace it. Turn off the attic fan and remove the cord from the outlet. Replacing a defective thermostat. These easy steps will guide you to replace a defective thermostat.

The extreme temperatures in your attic are always working against your hvac system making it work extra hard to perform properly. Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken. It is on all day and night nonstop we live in los angeles but it s not that hot yet the thermostat is set at 120 degrees.