Why is My AC Making so Much Noise?

Jun 18, 2018 | Air Conditioning

Curious young woman with glass leaning against the door listening to a strange AC noise.

Your air conditioning unit will always make some noise when running, and older units are louder than newer ones, so consider the age of your unit before getting too concerned about the noise that it is making. At AA-Air Company, we recommend a maintenance inspection at least once a year to inspect the health of your air conditioner. If the regular noise level from your ac unit is too much for you, talk to one of our technicians and we can advise what the next step might be.

If the noise your air conditioner is making is unusual or is different from its regular hum there are a few things to consider.

How would you describe the unusual noise that your unit is making?

Rattling

This could be from something that fell into the vents, or something is loose, a bolt, screw or fastener. It could also be your compressor rattling. If it is your compressor or anything more serious than a loose bolt you will need a technician to look into the problem further.

Grinding

Most likely this is one of the fan motors, or it is possible that there is a worn bearing.

Popping

This noise might be coming from your ductwork when your AC unit turns off and on. This usually indicates a problem with your ductwork and not necessarily a problem with your central air. Ductwork ages just the same as anything else and requires routine maintenance to make sure it is functioning effectively.

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Hissing

Unless this noise is coming from your duct work (a common problem), this could possibly be a refrigerant leak. If that is the case you will need one of our technicians to handle the problem.

Your air conditioner is a piece of machinery with many moving parts and, like a car, it requires regular maintenance by experienced professionals to diagnose and treat problems.

Trust your ears, if your air conditioner is making a noise that is unusual or harsh and you are in Knoxville, Maryville, Farragut, call us today at 865-689-5290 or schedule service online.

AA-AIR Company

Need Service?

Call Us at 865-689-5290
- or -


AA-AIR Company provides heating and cooling services in Knoxville, Farragut, Lenoir City, Alcoa, Louisville, Maryville and surrounding communities. Call us at 865-689-5290 or request HVAC service online today!

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