Hvac Blower Wheel Out Of Balance

Assemble pulley onto shaft and locate so it s flush with edge of shaft.

Hvac blower wheel out of balance.

Most of the time a piece of something filter furnace insulation paper dirt has become sucked in the blower wheel squirrel cage and causes it to become off balance and wobble. Most of the time wobbling inside the furnace is caused by the blower wheel being out of balance. The wheel has been hitting the side walls which makes it unusable and because the wheel is hitting the side walls it means the bearings in the motor are fucked and allowing play in the shaft. Noticed a louder humming and shaking in the home when we started to use the ac this past week.

Same thing is felt with cooling heating off just fan on. Blower wheel vibrates badly and i think it has too much runout. Locate end of shaft 1 7 8 from bearing assembly. Tighten pulley set screw onto shaft.

Furnace unit vibrating blower wheel motor out of balance or going out. Centering blower wheel in cooler on the pulley side.