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.

If your furnace is located against a wall this vibration can be carried throughout your house. 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. It is not the ho. Loose parts are to blame for vibrating sounds from a furnace.

Your initial assumption about load on blower due to new filter is valid. 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. Called starving the suction of the blower. In search of a solution to a vibrating furnace.

If the furnace housing is vibrating i d suggest tightening the screws on the housing. Loose access panels and framing also. Furnace mounting refers to how the furnace and its components are attached together. The answer is a number of different bolt systems.

Sometimes if enough dirt gets in the squirrel cage it will cause the wheel to vibrate when running. When one set of bolts begins to come loose it starts to vibrate as the furnace works. The circulation fan often is to blame especially if it is attached directly to the metal cabinet. Are the fins of the blower wheel filled with dirt.

I want your advice on how to fix a vibrating furnace. In my case the imbalance was due to a failing motor bearing. Pipe brackets burner parts cold air returns access panels into the burner chamber and blower chamber or even the plenum itself could be loose.