How To Fix Attic Fan Motor

Most fans have an on off switch that bypasses the fan s thermostat.

How to fix attic fan motor.

The nut will be on the fan blade collar. Remove this by taking off the wires making a note of which ones belong where and unscrewing the motor from the base. Others are secured with a screw or two. Remove the screw using a hex head wrench.

If however the fan still doesn t turn on the problem is most likely with the fan motor or the thermostat. Take off the back using the screwdriver and locate the attic fan motor. Some motor plates release by pressing or prying on the side of the fan housing. If there is any damage to the belt replace it with a new one.

You can start by checking the fan for debris and making sure that your fan s motor is properly lubricated. Sometimes cleaning out your fan and or adding some oil is all it takes to correct a problem. If the motor is working but the fan blades are not moving the problem may be the belt. The cause of the problem could be the belt.

Have you had an roofing siding or insulation work done before you noticed the difference in performance. Fix the wires into the correct positions using your pair of pliers. If the fan comes on you have an electrical problem in the circuit the attic fan is on. Some attic fan repair problems are relatively simple and can be done without the help of a professional.

Take your new motor and place it into the fan. How to test an attic fan motor and thermostat. Sometimes you face an issue where the attic fan s motor comes on but the fan blades don t move. Little or no airflow.

Slide the fan off the motor shaft. If there s a problem with the belt replace it with a new one. It s best to hire an electrician to deal with electrical problems. A fan that won t run is often caused by a failed motor or a bad thermostat.

Your belt might have deteriorated to the point where it is slipping and not turning the blade effectively. A screw or bolt may have come loose. 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. Remove the fan blade nut that attaches the fan blade to the motor shaft.

Turn off the power to the fan at the main breaker panel.