Your HVAC system is an important part of your home’s comfort. Problems with your HVAC system can be expensive to repair and lead to an uncomfortable home environment, especially if you don’t take care of them right away. Here are three of the most concerning HVAC noises that you need to address quickly to help prevent breakdowns:


Screeching is one of the most alarming HVAC noises. Oftentimes, it points to problems with a bearing or one of the belts inside your system. You’ll hear this sound when the components lack lubrication, come loose or are on the verge of breaking due to strain.

You can sometimes fix this issue with lubricant. However, if the noise continues or gets worse, it’s time to call in a professional to have your system assessed and fixed. These problems might be fairly uncomplicated to repair but can compound quickly if you don’t address them.


Banging, clanking or slamming sounds usually point to the same problem, especially if they’re coming from the outdoor unit. If there’s a problem with your blower assembly, you’ll often hear these sounds. This isn’t an issue you should tackle on your own, and a professional should handle it. If you schedule regular maintenance, this is typically a problem that can be caught and fixed early. As a result, you’ll prevent costly repairs.

Excessive Clicking

It’s common to hear a clicking noise when your HVAC system starts up. This is the relay telling your unit to start a new climate control cycle.

However, if you hear several clicking noises before your system starts or clicking without a new cycle at all, this could be a sign that there’s something wrong with your relay. This tends to be a quick and inexpensive fix, but it shouldn’t be left alone for long. Without this part functioning, you won’t have any climate control in your home. As a result, you’ll feel uncomfortable and risk further damage.

Concerned about the noises your HVAC unit is making? Air-Pro Comfort Systems can help. Call us at 913-521-8812 to set up an appointment today!

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