My AC Is Making Strange Noises

Posted on: October 14, 2014

As Largo’s top AC service company, we try to have all of the answers you might need right here in our blog. One of the most common concerns we get from customers is when their air conditioner is making strange sounds. We’ve all been there before: You either arrive home in the afternoon to unsettling noises coming from the vents/outside compressor or they wake you up in the middle of the night. And there are so many parts that it’s hard to tell where the noise is even coming from, let alone what it might mean.

So, as a homeowner, what can you do and when should you call a Largo AC service company? Let’s first consider why your air conditioner might be making these strange sounds:

Banging: This typically means that a part has come loose. However, this doesn’t necessarily mean the part is flying around freely inside, but rather just that it could simply require tightening.

Humming: A persistent buzzing noise could mean that the unit is dirty and needs cleaning. A local Largo AC service company can handle this for you in no time.

Gurgling: You’re likely low on refrigerant.

Hissing: This may indicate a leak, which needs to be addressed immediately by a professional.

Squealing: Denotes a worn out or loose fan belt, indicating a need for replacement.

Screeching: If there is any kind of horrific screeching sound, the most likely cause is that your compressor is off balance, which is straining the motor. In some rare cases, most often occurring in older units that need replacement, it can become so off balance that the fan blades strike the interior housing, throwing off sparks.

If your air conditioner is making strange sounds such as these, or any other sounds we’ve neglected to mention, it’s important to call a certified Largo AC service company for an inspection as soon as possible. At Midway we can diagnose and repair your unit in no time. With our 24/7 emergency repairs, it doesn’t matter how inconveniently timed the problem was for you, because any time is convenient for us.


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