Furnace Blower Motor Vibration

Easy fix pull out the blower disconnect the motor and clean the squirrel cage with hot water in a utility sink or garden hose outside.

Furnace blower motor vibration.

I want your advice on how to fix a vibrating furnace. When one set of bolts begins to come loose it starts to vibrate as the furnace works. Are the fins of the blower wheel filled with dirt. Loose parts are to blame for vibrating sounds from a furnace.

Furnace mounting refers to how the furnace and its components are attached together. Called starving the suction of the blower. It is not the ho. Blower motor mount squirrel cage plenum filter too small or the furnace itself vibrating.

If the furnace housing is vibrating i d suggest tightening the screws on the housing. If the merv rating of the filter is too high this will starve the blower suction and cause any minor vibration in the blower motor wheel assembly to amplify. The answer is a number of different bolt systems. Pipe brackets burner parts cold air returns access panels into the burner chamber and blower chamber or even the plenum itself could be loose.

Sometimes if enough dirt gets in the squirrel cage it will cause the wheel to vibrate when running. Installing an acoustic rubber pad under the furnace specially if it is sitting on concrete will damp the vibration you hear through the pipes although the blower fan and motor are the most obvious parts to check take a look at the complete unit. Check the fan and motor for signs of dust or debris build up or any other kind of obstruction and clear it away to see if the problem has been solved. In search of a solution to a vibrating furnace.

Unbalanced blower motor there could be something off balance within your blower causing the fan to make vibrating sounds when it spins. Loose access panels and framing also. In my case the imbalance was due to a failing motor bearing.