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AC Trouble: Don’t Ignore These 6 Ominous Sounds!

AC Trouble: Don’t Ignore These 6 Ominous Sounds!

September 7th, 2020


Did you know this is the time of year that you are most likely to experience air conditioner problems? The reason for this is because by now, your air conditioner has been running a lot and even a well-maintained system will accumulate a lot of wear and tear over the summer.

If an air conditioning system isn’t well maintained, it’s even more likely that something will go wrong. The most likely way a homeowner can actually detect if something has gone wrong is through strange, maybe even ominous, noises. Read on to learn about six we think you should know about.


Hear something that sounds like a banshee might be stuck in your AC? The good news is, there likely isn’t anything paranormal going on. What is likely going on, however, is that you have a motor problem. It could be relatively minor! In fact, it’s probably that a motor bearing is wearing down.

Worn-down motor bearings eventually create too much friction for the motor and permanently damage it. Our professionals can quickly and accurately replace the bearings in order to save your motor and prevent further damage!


This is another unpleasant noise that indicates motor trouble. It’s usually caused by a motor that accumulated too much dust or lost too much lubrication. This is a natural part of wear and tear, and something we check during maintenance. But you still don’t want to ignore the noise, no matter how diligent you are about maintenance.


This might actually be a relatively minor problem–or not even a problem at all. It could be indicative of a loose cabinet door. Typically, this is something you can fix on your own with a few twists of a screwdriver.

However, rattling could also mean that you have loose components being knocked around in the blower fan, or you have bent fan blades. So if you’ve checked around your system and still hear the noise, give us a call!


While encountering a snake is highly more likely than meeting up with a banshee, this probably isn’t what you’re hearing. Hissing coming from your air conditioner is usually a sign of a refrigerant leak. Refrigerant loss is a pretty serious problem, as it can damage the compressor and render your system inoperable. If you suspect this is happening, please give us a call.


Clicking is actually a natural noise that an air conditioner makes as the compressor starts up and shuts down. But if you hear this noise the whole time the compressor is running, you may have a problem on your hands.


This is probably one of the most alarming sounds you can hear come from your cooling system, right? The cause might be something like a loose fan belt, or a bent air handler that the fan blades are knocking into. This is most likely to occur in an aging system–which is any air conditioner 10-15 years old, or older.

Contact Dayco Systems for quality Alpharetta AC repairs!