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Savannah, GA & Hilton Head, SC


Douglas, GA

Savannah, GA & Hilton Head, SC


Douglas, GA



AAction Air Conditioning & Heating Co. Blog

Stay Vigilant for These AC Noises

If you ever hear a strange noise in your house, unless you’re stuck in a horror movie, you should always investigate the cause. Sometimes that cause might need the assistance of a service professional with air conditioning repair in Bluffton, SC, other times there might be an easier solution. Either way, don’t continue living your life as normal while pretending that these noises are fine. They’re not!

We have gotten a lot of calls over the years about air conditioners making noises, from squealing to bubbling, and each one of them can signify an issue with your system. Ignoring them should never be an option, and luckily for you, we’ve got a list of some noises that can help you keep on your toes. If you notice any of the following noises coming from your AC unit, you should absolutely call a professional to take care of them.

So? Let’s talk about some noises!

The Various Sounds of an Air Conditioner

There are many different kinds of sounds that can come from an air conditioner. If you hear something, aside from the slight sound of a cool breeze coming from your air vents, consult with a professional to find out what the issue is.


Squealing is reserved for pigs, not for an air conditioner. Your system can build up pressure inside the compressor over time, which might cause some serious damage over time. Without changing your filter every 1-3 months or having routine maintenance done on your system, this pressure could build up worse than normal.

Hissing or Bubbling

Speaking of pressure, your AC unit has refrigerant that is also highly pressurized and connected to an outside cabinet. Hissing or bubbling could signify that there is a refrigerant leak, as this dangerous gas begins to escape. This is not only a skin and face irritant but also damaging to the environment. Losing refrigerant means less cooling power, which in-turn means that your system will work harder to compensate for the lack of power. This will eventually lead to the breakdown of your AC.


Buzzing is most-likely a clue that your AC is suffering from an electrical problem. Is your buzzing AC accompanied by a spark or burning smell every time you turn it on? Contact a professional technician as soon as possible to take care of the problem. This could end up being a fire hazard.

Rattling or Banging

Rattling is often a clue that there is something loose within your AC system. Whether it’s a ball bearing or a screw that has fallen out or come loose, you’ll need to address it soon in order to prevent it from causing further damage.


Let’s first make sure this isn’t just the light humming of an older AC that’s working normally. It’s not? Yikes! Then it could be another sign that there are loose parts vibrating inside your air conditioner! These can always cause serious issues later on that will get more and more expensive the longer you let this noise go on.

Any of these noises apply? Contact a professional today to take a look at your system and make sure it’s running smoothly.

Allow us to do a quality job at a fair price. Contact AAction Air Conditioning & Heating Co. Inc. today!

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