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Is Your Furnace Making Noises?

Created by Privette Heating & Air Conditioning Admin


Are you hearing noises coming from your furnace? Does your furnace sound different than normal? Your furnace ideally creates a soft humming sound while operating. If you have heard unusual noises coming from your furnace, then your system could be experiencing an issue. Listed below are five furnace sounds and their meanings:


Grinding Sound

A grinding sound is usually caused by a loose wheel. While tightening the wheel may solve the issue, in most cases, it requires replacement. This sound could also occur if your motor mount needs a repair. If you are hearing a grinding sound, call a professional to find the root of the problem and repair it for you.


Rattling Sound

This occurs when something is stuck in the air filter. As the air blows, the object flaps in the wind and hits the side of your unit, which creates a rattling noise. If you are hearing this noise, clean your air filter and position it back to its place. If you clean your air filter and still hear the rattling sound, then it is time to call a professional as it indicates a more serious issue.


Booming Sound

This sound can be caused by combustion fuels and by-products of natural gas that gather inside your unit. They can create a partial blockage to your burner assembly and make a booming sound as your furnace operates. It is important to call a professional to come service your unit if you hear this noise.


Squealing Sound

This sound is caused by dust and dirt that has accumulated in the air filter. When you have a build up in the air filter, the space left for the air to escape causes a whistling sound as your unit operates. Occasionally, this noise is created by the friction of your unit’s moving parts that work close to each other. This happens due to lack of lubrication. If you clean your air filter and still hear a squealing sound, call a professional to find the problem and repair it.


Thumping Sound

A thumping sound usually occurs if your blower wheel loses its balance. This problem is serious and you need to call a professional as soon as you hear it.


Neglecting these sounds can cause your unit’s parts to break and stop operating. Our professionals at Privette Heating & Air Conditioning have the knowledge, skills, and experience to solve all your HVAC issues including the noises that your furnace is making. If you are experiencing any of these noises, give us a call today!


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