How To Replace Bearings In Attic Fan

Trouble shoot repair roof mounted attic fan.

How to replace bearings in attic fan.

Inside you ll find the ball bearing assembly and can evenly coat each bearing with the oil. The purpose of ball bearings is to make the fan run. 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. So if your s doesn t you can skip this step completely.

Use a screwdriver and gently pry the bearings out from the motor housing seals. Once the fan is re installed run it at normal speed until the sound disappears signaling that the bearings have fully re oiled themselves. Is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with. There are many replacement blades available on amazon.

With fan off go into the attic. Not all attic fans have ball bearings. Each half has two bearings one at the front and one at the back. Lift the bearings from the housing with your fingers once the bearings are loose.

Tap the motor a few times with the handle end of a hammer or piece of wood as if you were swatting a bug. Replace all the parts.