Electric Attic Ventilation Fan Problems

Fan problems even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.

Electric attic ventilation fan problems.

Roof vents create an additional roof penetration essentially another place of vulnerability where leaks can occur. Sealed attics trap excessive heat and moisture which can lead to reduced shingle life. On one hand the national renewable energy laboratory said attic ventilation reduces attic temperature 10 to 25 degrees and slows the transfer of heat into the living space. Insufficient ventilation can lead to moisture problems during the winter and decreased energy efficiency during the summer but too much ventilation can be just as bad if not worse.

Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken. Attic fan not turning on if the attic fan isn t turning on it could be an electrical issue a problem with the. Turbine fans have angled slits cut into a capped cylinder which create a continuous fan blade. 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.

Little or no airflow. The result is a cooler attic space with plenty of air exchange. If there is any damage to the belt replace it with a new one. If the motor is working but the fan blades are not moving the problem may be the belt.

However a ceiling fan in a room with attic exposure also acts to disrupt the air film reducing it s r value which brings ceiling temperature closer to room ambient. Good insulation reduces fan effectiveness. The science behind attic ventilation however is sound. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure.

Iliving 800 cfm shutter exhaust fan at amazon this fan can easily remove excess heat moisture and odor from any space up to 1 200 square feet. Quietcool smart 2830 cfm power gable mount attic fan at amazon this model is our top pick for its ease of use simple installation and maximum energy efficiency best budget. However the utility of attic ventilation fans is actually quite a controversial topic. I had a client whose wife didn t care for the sensation caused by ceiling fans.

The wind rotates the fan blade causing air movement in the attic as air is pulled out through the. Most fans cannot keep up.