Why Is My AC Making So Much Noise?

Your AC 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 Kimbro Air, 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.

First and foremost always make sure that the power to your unit is turned off before starting any investigating or poking around.

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 duct work when your AC unit turns off and on. This usually indicates a problem with your duct work and not necessarily a problem with your central air. Duct work ages just the same as anything else and requires routine maintenance to make sure it is functioning effectively.

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 Hendersonville, Nashville, Gallatin, or the surrounding areas, call us today at 615-527-8576 or schedule service online.


Ballard Natural Gas Services is proud to offer services to Seattle, Shoreline, West Seattle, Capitol Hill, Lake Forest Park, Richmond Beach, Bellevue, Mercer Island, Edmonds, Mountlake Terrace and the surrounding communities. Call us at 206-784-8101 or request service online today!


Kimbro Air proudly provides HVAC service to Hendersonville, Nashville, Bellevue, Bordeaux, Brentwood, Franklin, Gallatin, Goodlettsville, Hermitage, Madison, Mt. Juliet, White House and the surrounding communities. Visit our service area page for more coverage details, call us at 615-527-8576, or request service online today.

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