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Common HVAC Sounds and What They Mean

hvacsounds

We all get used to the noise our heating and air conditioning systems make during normal operation, but what happens when they start to make sounds we haven’t heard before? Here are some examples of common HVAC sounds and what they can mean:

What Does the Rattle Mean?

If you hear a rattle when your heat or air conditioning turns on, it could mean something got stuck in a vent or air intake. Take a look at each vent to make sure there isn't something wedged in it. If you can't find anything but the rattle persists, it could be something in the ducts. An HVAC technician can check the vents to help diagnose the problem.

Do You Hear Strange Popping?

Some popping is normal when your heat or air conditioning is running. The metal in the ductwork expands and contracts as hot or cool air passes over it, causing it to make that popping sound. If it’s suddenly louder than normal, it could indicate a problem with the duct work. It’s time to call an HVAC technician.

What’s Making It Squeal?

Squealing coming from your HVAC system is not part of normal operation. Squealing can indicate a failure in some of the components in your equipment, including fan belts or even parts of the motor. This requires inspection and service by a certified technician to ensure proper diagnosis and repair.

Every heating and cooling system makes some noise when it runs, but if yours is making new and unusual sounds that you haven't heard before, it's worth a professional look. For all repair and maintenance for your heating and air conditioning system, schedule a service with the experts at H.H. Hovey Heating and Cooling.

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