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What These Sounds from Your AC Mean

guy-mad-at-acAre you hearing unusual sounds from your air conditioning unit? While you may not pay much attention to the light whoosh of air coming through vents or the occasional click as you walk by the outside unit, there are some air conditioning sounds that should grab your attention.

In general, any noise that is out of the ordinary for your system deserves a prompt call for air conditioner repair in Clinton. Our team knows that strange sounds are often the warning signs of bigger trouble to come. That’s why we want to warn you about five troublesome sounds that you should never ignore.

Humming or Rattling

Humming or a light rattling sound often means there’s some type of vibration within the HVAC system. You may have a loose part or perhaps an electrical problem. While humming isn’t typically a sign of a serious problem, even a loose part can lead to more substantial repair bills if not corrected.

Clanging or Clanking

Oftentimes, that humming or rattling will eventually turn into a louder clanging noise. It’s often due to loose components that eventually break free, banging around inside your air conditioner. This could lead to more significant damage or a complete system breakdown, depending on the parts that are damaged.


Screeching is one of the most alarming noises from an AC system. It can sound like your AC is screaming at you. This sound is usually created by metal dragging on metal. The noise is often traced to a worn blower motor belt or loose fan blades scraping the interior of their metal housing. These issues require immediate attention to prevent further damage to your system.

Hissing or Bubbling

Hissing sounds are easy to ignore because they can sound similar to air coming through a vent. The difference is that hissing is louder and a bit more aggressive. The problem is often a clogged air filter that desperately needs changed, but it could also serve as your warning that you have a refrigerant leak. Bubbling can also be a warning sign of a refrigerant leak as well.

If you know how to check your filter, you may want to see if that’s the problem. If a clean filter doesn’t eliminate the hissing sound, then it’s time to call for repairs.

Repetitive Clicking

Some light clicking noises are normal for many air conditioners. You may hear that as the system shuts off or turns on, but when the clicking becomes repetitive it’s time to consider a call to our professionals. There are many reasons that can cause excessive clicking, so you need a thorough inspection to pinpoint the problem.

Is It Time for Air Conditioner Repairs?

While catching odd noises from your air conditioner can help solve problems early, you should also pay attention to the complete lack of noise from your air conditioning system. The next thing you’ll notice is rising heat inside your home because that refreshing silence typically means your system has stopped working entirely.

Do you need a professional to assess any odd sounds coming from your air conditioning system? Come to the experts at AirSouth Cooling and Heating
to get your repairs taken care of.

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