How To Replace Bearings In Attic Fan

Replacement blades usually cost around 20 30. With fan off go into the attic. Do this carefully and don t scratch the seals.

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So if your s doesn t you can skip this step completely.

How to replace bearings in attic fan.

The purpose of ball bearings is to make the fan run. Trouble shoot repair roof mounted attic fan. There are many replacement blades available on amazon. Not all attic fans have ball bearings.

Is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with. Use a screwdriver and gently pry the bearings out from the motor housing seals. Each half has two bearings one at the front and one at the back. 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.

It s a more affordable fix than getting a new attic fan. Inside you ll find the ball bearing assembly and can evenly coat each bearing with the oil. Tap the motor a few times with the handle end of a hammer or piece of wood as if you were swatting a bug. Lift the bearings from the housing with your fingers once the bearings are loose.

Replace all the parts. Once the fan is re installed run it at normal speed until the sound disappears signaling that the bearings have fully re oiled themselves.