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Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. Blog

Shake, Rattle, and Roll: What Your AC Sound Means


Your air conditioner isn’t ever going to be completely silent. The noise that it does make should blend in nicely with the ambient noise of your home though. You should really only notice when your air conditioner clicks on to start, clicks off to stop, or when the air moves through your vents while it’s running. Anything more is bound to give way to greater air conditioning issues. 

This is why we always want to help you with your AC repairs in Cedar Rapids. When you’re in doubt, you know that you can always contact one of our professionals for the service you’re looking for. We care about the quality of your air conditioning service and it shows in our work. All you need to do is get in touch with us when you want a quieter, cooler air conditioning system. 

AC Sounds You Might Hear and What They Mean

Here are some air conditioning sounds you might hear and what they mean.


We’re going to start with the titular problems that we listed. Shaking might be something that you hear when something has gone wrong with a major component of your home’s air conditioner. A loud, disruptive sound like this could point to trouble with something like your home’s air conditioner compressor. 


Rattling is a sound you might notice as well. This is a problem that almost always points to a loose part in your home’s air conditioner. Parts can dislodge or slightly move out of place but still work. If this is the case, then you’ll probably notice the sound of rattling before you notice any greater AC issues. It’s always best to address the problem at this stage. 


Do you hear something rolling around in your home’s vents? It is possible for part of your home’s vent to get loose and make a sound like this. In more fringe cases, there might actually be something rolling around in one of your home’s vents that moves when air blows. In either scenario, we can help you solve this issue. 


Clicking isn’t a problem if you hear it sparingly. If you only hear clicking when you turn your air conditioner on or off then you’re in the clear. Anything more is a clear indication of a thermostat problem or sometimes an indication of a deeper electrical problem in your home. You don’t want to ignore this problem if you notice it. 


When you’re hearing loud or persistent buzzing, then what you’re dealing with is likely an electrical issue. This is one of the sounds that we really suggest that you address as soon as possible. 


Squealing is a problem that you’re going to hear when something is off with the pressure in your air conditioning unit. High pitched squealing is something that can eventually cause permanent damage. It typically points to a problem with your home’s fan belt. We want to help you figure out the definite source of this problem so that we can help you solve it. 

At Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc., your comfort is our promise! To set up an appointment, give us a call at the number above, email or schedule an appointment online. Reach out today to set up a visit from a technician in Cedar Rapids to clear out your ductwork testing, repairs, and more.

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