Noises your Furnace Should Never Make

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October 17, 2022

Your furnace is godsent when it comes to keeping your home and family safe during the frigid winter season. While it's normal for your furnace to make noise while operating, some new noises should alert you to a problem. As soon as you hear an unexpected noise, it's best to consult an HVAC professional to address the issue sooner rather than later.

Bang or Boom Sound

Loud bangs or booms will be enough to unsettle you from your chair. Sometimes this may be the popping of expanding or contracting ductwork during extreme temperatures. However, other times, this sound could result from gas build-up inside your furnace that explodes upon ignition. Following the source of the noise can help you identify the likely culprit.

Rattling Noise

One fairly annoying noise that your HVAC system may make is rattling. This is typically an indication that a component is loose inside your furnace or ductwork. Some common culprits include cracked heat exchangers, loose access panels, and loose screws. Again, tracking down where the noise is coming from is the first step in identifying what it is.

In most cases, you may need the assistance of an HVAC professional to assess the source and fix the issue. You want to avoid running your system with this rattling noise as it could lead to an even bigger and costlier problem.

Squealing or Screeching Sounds

Noises described as squealing, screeching, and whistling can all indicate an issue with the operation of your furnace. While these may not seem as big of a deal as rattling or booming noises, they can indicate actual problems with your furnace that need to be addressed before they worsen. The source of this type of noise could be an unlubricated moving part in your system or a worn-out fan belt.

By calling in an HVAC professional, they will be able to successfully identify the source of the noise and fix it before it becomes a larger and costlier problem to do so. These are just three of the most common noises your HVAC system can produce. Some other noises include clanking, chirping, grinding, and even clicking.

Call Us Today

If your furnace makes an unexpected noise, it must be checked out promptly. Give us a call today to have one of our highly experienced HVAC professionals assist you with your furnace.

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