Blower Fan Motor Noise

In that case buy a complete kit.

Blower fan motor noise.

If your interior ac heat fan blower motor is making noise like a card in a bicycle spoke then you probably just need to clean. Even though it s in a housing it lives in the engine compartment so it s not unheard of for foreign objects to get sucked into and wrapped around or caught in the fan. We bought just the blower for the 14 year old heat glo gas fireplace shown here. There s a rattling or buzzing noise coming from the condenser unit when the fan is turned on.

Remove the old fireplace air blower. Pipe brackets burner parts cold air returns access panels into the burner chamber and blower chamber or even the plenum itself could be loose. The sounds happen less when blower is on higher settings and all the time on lower speeds. The sounds happen in cold or humid weather and especially when hitting bumps in the road or slamming on the brakes.

However if the motor doesn t run at all chances are it has a bad temp sensor or speed switch. Sometimes this noise is not due to a blower motor problem but occurs because debris is caught inside the blower assembly. Your first step after noticing this sound should be to turn off your furnace s motor and let it cool down. Quiet a loud blower motor.

Sometimes during blower motor operation you might hear excessive noise. If you hear a loud rattling noise it could be a minor issue like loose stones or debris that s caught in the condensing unit. Humming sound a humming sound is one of the most common blower motor noises reported by home owners. If your blower runs but is noisy buy just the motor fan assembly.

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. Squealing and screeching sounds coming from beneath the passenger side dash when the a c heat blower motor is on. The blower motor is a small rotary motor that drives a fan sitting behind your vents pushing hot or cold air through them at varying speeds depending on your selection. Once it is safe to touch examine the motor and look for any obvious signs of wear or breakage.

Blower motor mount squirrel cage plenum filter too small or the furnace itself vibrating.