My Attic Fan Is Not Working

How to test an attic fan motor and thermostat.

My attic fan is not working.

How does an attic fan work. This will indeed help reduce the temperature in the attic but only marginally unless the incoming air from outside is substantially colder not likely in the summer till nightfall you also. A mechanical fan working in an attic space equipped with adequate ventilation openings can move hot air out and increase the flow of air through the attic. If the motor is working but the fan blades are not moving the problem may be the belt.

It helps to cool your home temperatures and the attic by approximately 30 degrees. 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. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Much of the time if the issue is electric it can be rewired and fixed.

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. A fan that won t run is often caused by a failed motor or a bad thermostat. Before calling in a pro to fix the fan check that the problem is not from the wiring as there may simply be a short along the circuit or another issue that is not in the attic fan itself. An important control element of this home appliance is the thermostat.

During workdays would leave air conditioner off when leaving in the morning. Fan motor runs but not the blades. If your ac system is in your attic your situation is quite different. After attic fan installation ac still off during day.

However they are not an effective ventilation mechanism and it can get really hot in the attic during summer. You may need to replace a circuit breaker an electrical outlet or one of the wire connections. The whole house fan is installed inside the attic between the living space and ceiling. The extreme temperatures in your attic are always working against your hvac system making it work extra hard to perform properly.

Temp 84f at 5pm. Electricity to fan not working. The attic fan kept my house cooler by 8f compared to pre fan installation days. Temp 92 f at 5pm.

Otherwise you may need to replace your motor. The attic is usually built with vents that are designed for ventilation purposes. Attic fan not turning on. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.

Whole house fans work on the principle of removing the hot and humid air out of the house. Adding an attic fan may help to lower the ambient temperature in the attic but it s not an ideal solution. If the attic fan is plugged into an outlet use a voltmeter to make sure that the outlet is working.