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What to Do if Your Furnace Blower Motor is Making Noise

Strange noises coming from your HVAC system are never a good sign. An unusual sound can cause home owners to worry, leaving them wondering if there is something majorly wrong with their equipment. If your furnace blower motor is making noise, try not to panic. There could be several explanations for the noise, and even some you may be able to fix on your own at home.

Here, we’ll take a look at some of the common furnace blower motor noises and potential fixes to get your furnace running smoothly again:

Humming Sound

A humming sound is one of the most common blower motor noises reported by home owners. Your first step after noticing this sound should be to turn off your furnace’s motor and let it cool down. Once it is safe to touch, examine the motor and look for any obvious signs of wear or breakage. If there is no damage, try lubricating the motor and restarting the furnace to see if the noise has disappeared.

Screeching Sound

A screeching or squealing sound coming from your furnace blower motor could mean there is a bad belt or an issue with the motor bearings. Replace the belt with the correct part for your furnace if necessary (Reference your manual to be sure, or call a furnace repair specialist). You can also add lubricant to the bearings to eliminate the screeching sound.

Thumping Sound

A thumping, banging or clanking sound could be the result of a loose or broken off part in the motor or blower assembly. Should you hear one of these noises, turn off your furnace immediately. Call a professional to examine and repair or replace the broken part before you turn your furnace on again.

Loud Blower Fan

Sometimes, your furnace blower motor is just simply too loud and becomes a nuisance. If this is the case, you may have issues with your ductwork, or might need to reduce the fan speed of your furnace. In either case, it’s best to have a pro take a look at your system and determine if there is a way to reduce the noise it makes without decreasing efficiency.

Still find your furnace blower motor making noise? Call Evam Canada now for emergency furnace repair at 905-624-5544. Our experienced HVAC technicians are available to diagnose and repair the cause of the noise and ensure your equipment is operating safely.

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