Is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with.
Remove attic fan blade.
Also if sponge rubber was used to support the frame remove that as well at this time.
Remove the old ventilation fan from its mounting by removing the lag screws or the nuts holding it in place using an adjustable wrench.
Trouble shoot repair roof mounted attic fan.
Can t remove attic fan blades from shaft.
Removing fan blade take the setscrew out completely and stash it someplace where it won t go astray.
It s far easier and only slightly more expensive to simply buy a new computer or an attic fan in this case.
Shop for attic ventilator parts.
If you can reach a wrench in between the pulley and the motor try turning the shaft while holding the wheel.
Also the motor is the most expensive part of the whole attic fan.
Spray the rustbuster into the setscrew hole as well as at the spot both sides top and bottom where shaft and blade bore meet.
It s like replacing a processor in an old computer.
Unplug and remove the fan from the window.
But if you insist on trying i use rust buster on those.
Locate the screws around the perimeter of the fan and open up the fan.
These fans circulate the air within the attic pulling fresh.
Remove loose matter from the fan parts with a paper towel or microfiber towel.
Attic fans serve a different function removing the hot and moist air from the attic and leaving the space below the attic floor alone.
Place the new fan in position and secure it in place with the.
It s a lot more difficult to replace the motor then it is to replace smaller parts like the fan blades.
Separate the grill cover from the.
You probably won t fit through that gap with the blades off.
If there are fasteners attaching the whole house fan to headers or joists use your socket wrench screwdriver or pry bar to remove them before removing the fan.
