Why Is My AC So Loud?

Your HVAC system is one of the most expensive parts of your home to repair or replace. Because of this, it’s important to take extra care of your HVAC to prolong its life and prevent any major issues.

If you hear your air conditioner making a loud noise, there could be a few different problems that are causing the noises to occur. In this article, we’ll tell you a few different causes of common HVAC noises, as well as what you need to do to get the issues resolved.

Why Is My Air Conditioner Making a Loud Noise?

It’s important to note that, if your HVAC unit is making a loud noise, the first thing that you need to do is turn off your unit to prevent any serious damage from occurring. That way you can limit the damage, and your repair bill, saving you some money.

If you already have an HVAC company that you use regularly, calling them ASAP is your next move. And if you don’t have an HVAC company that you use often, we recommend that you Google “air conditioning repair near me” to find a reputable company to contact.

So, what could be causing your HVAC system to make so much noise? Odds are, your problem is being caused by one of the major components on your HVAC company malfunctioning.

Below we’ve broken down a few of those major components, as well as what noises they make when they’re malfunctioning.

1. Compressor

If your compressor is going bad, you’ll hear a loud banging noise coming from your outdoor unit. Again, turning off your unit to prevent any irreversible damage is a must, as is contacting a professional to inspect your unit further.

A pro tip? If you need to replace your compressor, check to see if it’s under warranty beforehand. If it is, you should be able to at least get the part covered by your warranty, and possibly the labor, which can save you thousands of dollars.

2. Capacitor

Hear a buzzing noise coming from your HVAC unit? While it’s not a guarantee, the most likely issue is that you’ve got a capacitor that has gone bad, or is at least about to go bad.

The good news? A capacitor is an affordable and easy fix that shouldn’t set you back more than a hundred bucks or so.

3. Compressor or Fan Motor

Got a screeching or squealing noise coming from HVAC unit? If you do, odds are it’s your compressor that is causing the issue.

If it’s not your compressor, then it’s probably your fan motor that is giving you problems. Regardless, you need to shut off your unit and call someone ASAP to correct the problem before you create further issues.

Still Having Issues With Your HVAC Unit?

If your air conditioner making a loud noise, odds are it’s one of the three issues that we’ve mentioned on this list. Failure to address these issues fast could cause more damage and even lead to you needing to replace your unit.

So, as soon as you hear a noise, shut off your unit and contact an HVAC repair company immediately.

Looking for more useful tips and tricks for homeowners? Check out our blog!

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