Why Is My Air Conditioner So Loud?

Why Is My Air Conditioner So Loud?

Many homeowners dismiss a noisy air conditioner as “just one of those things,” but did you know that air conditioner noises indicate bigger problems? If your air conditioner is operating loudly or making strange sounds, it is important to find out why.

Common Air Conditioner Noises and Their Causes

Fortunately, air conditioner noises are not uncommon. Here are some noises you may be hearing and what might be causing them.

1. Grinding

A grinding sound often occurs when a belt loosens and rubs up against another part. It can also indicate a problem with the compressor.

2. Rattling

Rattling could mean that debris has gotten trapped somewhere in your system and is now moving around, much like a rock in a dryer.

3. Whistling

A loud hiss or squeal points to an issue with your compressor, possibly a refrigerant leak. Turn your air conditioner off immediately if you hear a screaming sound.

4. “Thwapping”

If something is caught in the blades of your air conditioner’s fan, it will produce a “thwapping” noise.

5. Buzzing

Loud buzzes or vibrations generally indicate that bolts, screws, or other small parts have been knocked loose and are now vibrating under the system’s pressure.

6. Squealing

Squealing or squeaking noises are typically the result of a loose belt or motor bearing. Your system may simply require lubrication.

Tips for Preventing Air Conditioner Noises

Now that you know how to identify the problem, let’s talk about remedying it. You can’t always fix air conditioner noises on your own, but generally speaking, you can stop noises in one of the following three ways.

1. Replace old parts.

Of course, the most obvious way to fix your air conditioner is to make necessary repairs to old parts. Sometimes, you can simply patch up a leak or move a part back into place. However, more often than not, you will need to replace old parts entirely. It is always better to replace parts early before they cause bigger and more expensive problems within your HVAC system.

2. Change your air filters.

Another common issue with air conditioners is simply an old air filter. A clogged filter not only causes noises and other system errors, but it also allows unhealthy air to circulate throughout your home. You should change your air filter as often as the manufacturer recommends, or every month or two.

3. Schedule professional AC tune-ups.

Preventive maintenance is the best kind, which is why you should schedule annual HVAC inspections by a licensed technician. Generally speaking, you will work out a service agreement with your contractor upon system installation.

Why Is It Important to Tune Up Your Air Conditioner?

Air conditioner and furnace tune-ups often get knocked to the bottom of the “home necessities” list simply because the issue doesn’t seem pressing. However, proper HVAC maintenance is vital to keeping your air conditioner in working order.

Since your air conditioner controls the quality of the air you breathe within your home, it is important for your air conditioner to run well. A noisy or faulty air conditioner often indicates problems with your filters or vents, which can pose health risks to you and your family. Maintaining good indoor air quality is vital to your health and comfort.

How Can IAQ Help You?

The purpose of Indoor Air Quality is to keep your HVAC system operating smoothly and efficiently so that your home stays comfortable and healthy. If you have any further questions, contact Indoor Air Quality today. We serve homeowners in Highlands Ranch and throughout the Denver Metro Area. Our highest priority is the comfort of your home.