Your air conditioning unit is one of the few things in your home that you really can’t live without. That’s why it’s important to keep your home’s air conditioner in good working order and have any issues taken care of quickly.

That includes unusual and loud AC noises. Aside from the sound of your air conditioner starting and stopping a cycle, they don’t typically make loud noises, so anything out of the ordinary should be a cause for concern.

In our most recent blog, the heating and cooling professionals at A-1 Mechanical discuss one noise in particular – a buzzing sound – and the reasons that cause it.

What Causes an Air Conditioner to Make a Buzzing Noise?

Hearing a buzzing noise coming from your air conditioner is often a sign there’s an issue with the unit. While the machine does often produce a low humming noise, anything louder than that could mean something is wrong internally. We recommend always having a professional company come out and check your unit if you are hearing concerning sounds. While it may be a simple fix, you never really know until a qualified technician takes a look.

Some of the most common reasons you hear a buzzing noise coming from your air conditioning system include:

Unit Is Frozen

When your unit runs for a long time with no break, it can physically freeze. This can create a loud buzzing noise. If you are experiencing this, turn off the cooling system right away. After giving it time to unfreeze, try again. If the issue persists, call a professional. A refrigerant leak can also freeze the coils, which can lead to serious damage and even health and environmental issues.

Fan Issues

An air conditioner works by having a condenser fan blow air from the outside unit. Typically, we find that if the fan blades are not moving, but the blower is, it can create a loud buzzing noise from the machine. There are several things that can happen that don’t allow the fan to move, including debris getting in the way. Working with a professional to resolve these issues is a smart call.

Compression Malfunction

A compressor’s job is to pressurize and cool the refrigerant in your system. If you hear a buzzing sound, there is a chance that the AC compressor is not working. An electrical problem is usually the trigger for this, although it can be hard to pinpoint if you are not trained.

Loose Parts

An air conditioning unit is a complicated and technical piece of machinery. It’s filled with many moving parts, all of which are crucial to proper operation. This means that even the smallest loose screw or bent piece of metal could be detrimental to your system’s health. Any number of loose parts can lead to your AC system making a buzzing noise. If you are not completely confident in the issue, work with a professional HVAC team.

Why Choose A-1 Mechanical?

When it comes to something as important as your home’s safety and comfort, never let it take a backseat. If you want to ensure that your home is comfortable and your family is happy during the hot Michigan summers, then work with us.

Between our highly trained team and premier customer service, it is no question that we are the top company to come to with your AC issues. Whether it is an uncommon sound or a complete breakdown of your system, we have you covered.

Contact A-1 Mechanical Today!

If your AC unit is making a loud buzzing sound, it is time to give us a call. We are fast and efficient and more than happy to help! Give us a call today to schedule an appointment for your noisy air conditioner.