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Celco Heating and Air Conditioning

Listen for These Air Conditioner Noises

We’re moving out of spring and into summer, which means that you’re probably using your air conditioner more and more often to keep cool. Added usage means more stress on the system, which means greater likelihood for things to go wrong. One of the first signs that your air conditioner is in need of repairs is strange noises coming from the system. Let’s take a look at some of the noises that you may hear coming from your air conditioner this summer, and the problems they indicate.


Your air conditioner can move air throughout the house because of a part called the air handler. The air handler is basically a large motor attached to a fan, which circulates air through the ducts. This takes a lot of force, and as a result a lot of friction is put on the system. The air handler uses oiled bearings to help it run more smoothly, but these bearings do wear down over time. As the bearings wear down, the friction on the system will increase, producing a loud grinding sound. If the bearings are not replaced sooner, rather than later, the air handler will overheat and burn out.


Hissing and bubbling noises coming from your air conditioner are often an indication of air bubbles in the refrigerant line. That means that you have a leak somewhere in the refrigerant line. The air conditioner is not designed to actually consume refrigerant, but recycle it back and forth through the system. If the leak is not dealt with, and the lost refrigerant refilled, the air conditioner will experience a drop in output and eventually break down entirely. You should call for repairs as soon as you notice this happening.

Celco Heating and Air Conditioning offers comprehensive air conditioner repair services throughout Celco. 

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