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Noises You Don’t Want Your AC to Make and Why

women-covering-her-earsDid you know that summertime is the most likely season for air conditioners to develop issues? Even if you used your system a little this past spring or need to use it some more this coming fall, the time you’ll be using it the most is these summer months. And the more use it gets, the more wear and tear it accumulates, making it more likely for various components to break down.

It’s important that you have your air conditioning system checked out by a professional if you notice any signs that it’s malfunctioning in some way. Let’s take a look at one of the more common signs that your AC system is malfunctioning in some way: odd noises.


If your AC system is making a grinding noise while it’s operating, it’s probably because there is an issue with the air handler. The air handler motor contains a number of oiled bearings to help keep friction as low as possible during its operation. These bearings will wear down over time, which causes friction on the air handler motor to slowly increase.

Once the friction gets high enough, the air handler motor starts to make a grinding noise. This is normal wear and tear, but, if you hear this sound, you should call for repairs ASAP. The bearing will need to be replaced soon, before the air handler motor overheats and burns out.


If your air conditioner is making a noise like the air being let out of a tire, it’s likely because it has air bubbles in the refrigerant line. This means you have a leak. The lower the refrigerant level in the air conditioner drops due to a leak, the lower the system’s output capacity will drop in response.

Eventually, the refrigerant level in the system will drop so low, that the air conditioner will be forced to shut down. Make sure you call for AC repairs as soon as you hear this sound.


Is your air conditioner turning itself on and off every couple of minutes or so? This is called short-cycling, and it can be caused by a number of things. This might include electrical problems or a compressor malfunction, among other causes. Regardless of the source, what’s more important is the threat it poses to your AC system.

The system cuts down on the air conditioner’s ability to cool the home, but it also accelerates the rate in which the AC wears down. Prolonged short-cycling can and will make the system more prone to breaking down, and shorten the system’s lifespan by a number of years. For this reason, you should call for repairs as soon as you notice your system is short-cycling.

The above-mentioned noises are just a few indicators of problems within your air conditioning system. If that system starts making any sounds that seem out of the ordinary, it’s worth giving our team a call.

For trustworthy air conditioning repair in Littleton, CO, contact Cool Sunshine Heating and Air Conditioning, Inc. today!

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