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