How To Fix A Broken Attic Fan

If your ceiling fan makes a humming noise when it runs you may be able to eliminate the problem by changing the control.

How to fix a broken attic fan.

Some attic fan repair problems are relatively simple and can be done without the help of a professional. A broken belt will cause the fan to run without actually drawing in any air. 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. How to fix a fan that hums.

A fan that won t run is often caused by a failed motor or a bad thermostat. Others are secured with a screw or two. Look for contractors that. If there s a problem with the belt replace it with a new one.

How to test an attic fan motor and thermostat. If there is any damage to the belt replace it with a new one. 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. Your only option with a broken thermostat is replacement.

Some motor plates release by pressing or prying on the side of the fan housing. The cause of the problem could be the belt. Simply replacing the belt could solve your problems. Much of the time if the issue is electric it can be rewired and fixed.

Inspect the fan for the underlying cause of damage including stressed parts and signs of animals. You can also check to make sure the exhaust vents are free of dust and debris. You can start by checking the fan for debris and making sure that your fan s motor is properly lubricated. Sometimes you face an issue where the attic fan s motor comes on but the fan blades don t move.

Sometimes cleaning out your fan and or adding some oil is all it takes to correct a problem. Tune up the fan to prevent burgeoning problems and malfunctions. Remove the outer casing of the attic fan and check to see if the belt is sagging cracked worn or broken. See our ceiling fan buying guide.

Turn off the power to the fan at the main breaker panel. Recommend the best ventilation practices for your region and home s attic design. You ll need to take out the outer casing of the fan and look to see if the belt is cracked sagging worn out or broken. Then unplug the fan and remove the motor plate photo 2.