Sounds You Should Never Hear from Your AC

Chris Ellis • July 7, 2023

Sounds You Should Never Hear from Your AC


In most cases, you should barely notice any noise from your AC. Anything beyond the gentle whir of the fan is cause for concern. Listen for the following sounds that your AC can make when something is wrong — and reach out for air conditioning repair in Columbus, OH, to set it right again.


Rattling

A rattling noise coming from your AC is an immediate cause for concern. It typically means that some mechanical element is damaged or worn, such as the compressor or fan motor — which are both vital parts. These issues only get worse over time, so you’ll have higher repair costs if you don’t act now. 


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Squealing

A high-pitched squealing noise can indicate a few issues. Some AC units rely on a belt to drive the fan. When the belt becomes worn out or broken, it can make a squealing noise. Bearings can also cause a similar sound. In either case, the squealing means your AC system will fail soon if you don’t obtain repairs.


Hissing

A hissing sound typically means that something is wrong with your AC unit’s refrigerant cycle. There could be a refrigerant leak at any point in the line, and you’ll need a professional to find it. The compressor valve is one of the most common points, with the high-pressure release creating a distinct hissing sound.


Clicking

You might notice a clicking noise during cycling as switches flick inside the AC. However, constant clicking is a sign that something is wrong. Rapid clicks likely mean an obstruction to the fan or other damage. There could also be electrical faults affecting switches.


Whistling

If your home has ductwork, a whistling or blowing noise is likely caused by a leak. That means you’re wasting additional energy cooling wasted air. There could also be an obstruction to airflow, which again causes efficiency issues.


Air Conditioning Repair in Columbus, OH

Has your AC unit started making strange noises? Don’t wait until the issue gets worse. Instead, you can count on the experts at Legacy Heating & Cooling for reliable air conditioning repair in Columbus, OH. Get to the bottom of the issue at hand by scheduling your service today.


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