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Serving the greater Fresno area since 1970


Why Does My AC Sound Funny?

One of the best ways to tell if your air conditioner is in need of repairs is by listening to it. And no, we don’t mean lending an ear while it tells you all about its woes.

You see, your air conditioner is not inherently noisy. In fact, the only sound you should really ever hear coming from your system is the sound of air gently whooshing through the vents. Therefore, any other sounds, that don’t quite qualify as “background noise”, should definitely warrant a call to your local HVAC service professionals. Below, you’ll find a list of strange sounds that you definitely don’t want to hear coming from your AC. 

Listen Carefully for These Strange Noises

There are quite a few sounds that you don’t want to hear coming from your air conditioner. If you here any of the following, be sure to call for air conditioning repair in Clovis, CA ASAP.


Otherwise known as the sound of metal on metal, this sound can be indicative of a variety of motor problems. The most likely culprit is motor bearings that have worn down. If these bearings fail, it can end up permanently damaging your motor if you’re not careful. Therefore, it’s important to call for repair right away!


Grinding is another sign of motor problems, often from too much dust build-up or too little lubrication on the components. If this sound is paired with an acrid odor from the vents, we recommend shutting down your system and contacting a professional for repairs ASAP, as your motor is likely overheating.


Rattling can be the result of a variety of issues. For instance, it can be from a minor problem, like a loose cabinet door. However, it might also indicate that a component of your AC has come loose and is being knocked around. Fortunately, a professional will be able to diagnose the issue and repair it accordingly.


A hissing sound is almost always due to a refrigerant leak. This sound os one of the earliest signs of this problem — indicative of high-pressure gas escaping from the lines.  If you hear this sound, it is important that you call for repairs right away, as a refrigerant leak can lead to all sorts of other issues!


You may hear a clicking sound when your system starts up and when it cycles down. These clicks are normal. What’s not normal is the consistent clicking or a “hard starting” air conditioner. This means that the system is struggling to power the compressor, which is definitely something you want to be fixed right away.


Though this noise can be rather loud and alarming, it’s probably something like a loose fan belt or a bent air handler that the fan blades are knocking into. If you hear this sound, it’s in your best interest to shut down the system before there’s any more damage to the system.

To schedule your air conditioning repairs, contact the team at Donald P. Dick Air Conditioning today!