Attic Fan Turns On And Off

Fan motor runs but not the blades.

Attic fan turns on and off.

Because of the attic s location it is always a hotter part of the house. Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken. It is designed to maintain a static level of temperature through regulation. If you have a humidistat installed it turns the fan on and off as well according to the humidity.

Also you place it on the roof top or gable mounted. If the motor is working but the fan blades are not moving the problem may be the belt. There is an automatic monitoring mechanism for the attic fan that switches it on or off according to the internal temperature. If there is any damage to the belt replace it with a new one.

This monitoring and control function is served by the thermostat. An adjustable thermostat which is included turns the fan on and off according to the temperature. Attic fans are designed and installed to switch on via a thermometer when the temperature in a house reaches a certain point. Typically these devices are used in summer when the temperatures are high exceeding 49 degrees celsius.

It ensures that a set temperature is maintained. Some can have manual switches while others use a thermostat to turn them on and off automatically. Will the attic fan take air from within my home. An attic fan is normally automatic.

With an attic fan that switches on appropriately when the attic reaches a specific degree somewhere between 105 120 degrees fahrenheit it serves to push the hot air out of the house and to help cool your home the upstairs bedrooms can drop in temperature by almost 10 degrees. Attic fan not turning on. Attic fans come with different models.