Turn off the power to the fan at the main breaker panel.
Repairing motor on attic fan.
Tap the motor a few times with the handle end of a hammer or piece of wood as if you were swatting a bug.
This attic fan motor is the most expensive repair for attic exhaust fans.
Spray some lubricant wd 40 or similar into the air ports at the top bottom of the air holes in the fan housing for about 3 to 5 seconds.
A broken belt will cause the fan to run without actually drawing in any air.
In most cases a defective attic exhaust fan is due to a worn out or damaged motor.
Http amzn to 1tq17ky replacing and attic fan is easier than you might think.
Others are secured with a screw or two.
Remove this by taking off the wires making a note of which ones belong where and unscrewing the motor from the base.
Some motor plates release by pressing or prying on the side of the fan housing.
Replacing a higher end motor or the fan cost to repair an attic fan varies greatly by region and even by zip code.
With fan off go into the attic.
Trouble shoot repair roof mounted attic fan.
Remove the fan blade nut that attaches the fan blade to the motor shaft.
Step 2 add the new motor.
Is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with.
Then unplug the fan and remove the motor plate photo 2.
Sometimes it works out more economical to replace the attic fan thermostat instead of repairing it.
Take your new motor and place it into the fan.
However one thing that you can look at is the fan belt.
After you realize that it s not an electrical or thermostat problem the chances of it being a problem with the motor are quite high.
Slide the fan off the motor shaft.
Clearing debris blockage or replacing the belt high.
Take off the back using the screwdriver and locate the attic fan motor.
Fix the wires into the correct positions using your pair of pliers.
Remove the screw using a hex head wrench.
A defective attic exhaust can lead to abnormally hot temperatures in your home because hot air in the attic is not allowed to escape.
The nut will be on the fan blade collar.
Replacing a mid range motor or the thermostat low.
With some basic tools you can replace the fan motor or.