5 Important Considerations With a Noisy AC Unit

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According to Air Conditioning, Heating and Refrigeration NEWS, a noisy air conditioner is a sign that your A/C is not working properly. From simply removing debris from your fan to large repairs and A/C unit replacements, a noisy A/C can be fixed in a variety of ways. However, knowing what is causing the noise may help you in the future by diagnosing problems much earlier on. Here are five important considerations for when you have a noisy AC unit.

Are You Overworking Your Air Conditioner?

One of the easiest ways to reduce the lifespan of your A/C unit and cause unnecessary repairs is to keep your A/C running constantly. When you have the A/C unit set to “On”, instead of “Auto”, you not only cause wear and tear on A/C parts, but you are also significantly increasing your electric bill.

If your A/C is on “Auto” and is still running constantly or cycles on and off repeatedly, it may mean any number of issues including dirty air filters or coils, leaking refrigerant, faulty controls, holes in the ducts or a number of other reasons. These are easily fixable through a maintenance visit from your trusted A/C company.

Your A/C Unit Isn’t Right for Your Home

If you have just installed a new A/C and notice it being noisy or have spent months with a noisy A/C, it may mean that the unit that you purchased may not have been the best fit for your home. It’s possible that your unit isn’t the correct size for your space or that you may have purchased a lower cost unit that lacks noise reduction technology.

You will need to bring in an air conditioning system design professional to assess your home’s needs. They will be able to tell you exactly what size unit to use and may even provide ideas for reducing potential sound in the future such as noise buffer zones and duct redesigns.

Are You Hearing Whining or Hissing?

A whining, hissing or whistling sound is typically caused by airflow or air pressure issues. It may require an inspection to identify the culprit, but it is usually fixable in a simple maintenance visit. Here are some of the possible problems:

  • You have a duct leak
  • Air filters are clogged or improperly installed
  • There is a hole in your ducts or improper ventilation design
  • The expansion valve may need a repair

Regardless of the reason, if you are dealing with a noisy A/C unit, you should call the experts at Scott’s Heating and Air Conditioning to come take a look. Don’t let a simple repair turn into a system replacement because of neglect.

Are You Hearing Rattling or Shaking?

Hearing a shaking sound coming directly from your air conditioning unit? Then you may have a damaged fan motor or the unit itself may not be stabilized to the surface it sits on. Remember, air conditioners are machines that have electricity running through them. If you are experiencing rattling or shaking with your A/C unit, call a trained professional to fix it.

Are You Hearing Screeching and Squeaking?

If you are hearing a loud screeching or squealing sound, it’s best to first identify exactly where it’s coming from. If you are hearing it from your outdoor condenser unit, then you either have a bad compressor or a faulty fan motor. If the screeching is coming from inside the house, then the primary culprit is the blower fan motor. You may need replacement parts, part adjustments or simply just need to lubricate the motor shaft bearings.

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Scott's Air
  
 

Scott’s Heating & Air Conditioning is a full-service heating and air conditioning company and a Bryant® Factory Authorized Dealer in Central Florida. Whether you need repair, maintenance, or installation of a new heating or cooling system, we provide efficient, cost-effective, and professional service. When it’s hot, call Scott!

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AC Service Testimonials

UPDATE 12/11/25-
Mr. Scott, the owner took the time to speak with me the day before to take ownership of the unfortunate event, and to rectify it, he personally came over to speak to me and issued a refund for the blower motor replacement to honor me being a customer and purchasing the unit from them in recent times. This speaks a lot about his integrity and customer centric approach. Even though I didn’t hear from them initially for a few months, this was a great gesture in difficult times, and I appreciate this, therefore updating my review.

STAY AWAY!!!

I purchased a new AC system from Scott’s Air & Heat in 2022 for approximately $7,000. Since then, I have already spent over $1,500 on repairs in 2 years. Despite the system having a 10-year parts warranty, I was charged $650 for labor alone to replace a blower motor—a repair that took about one hour to complete. Another reputable company quoted $500 total, including both parts and labor, for the same job.

Additionally, I was charged $258 for the same issue just a week prior, and when the problem recurred, the company billed me again instead of honoring their previous service. Attempts to reach the owner or manager for a resolution went unanswered.

Overall, I found their pricing to be excessive and their customer service severely lacking. I would not recommend this company based on my experience.
Response from the owner:Hi, Thank you for taking Scott's call today & allowing us to make this right. We're looking forward to meeting you tomorrow with the hopes of being able to earn your 5-star rating. We genuinely care for our customers and their families and want you to be 100% satisfied. Thank you again.
It’s been a long process, but Scott did call personally to make sure that our ac unit was working properly. They even upgraded to the correct size unit we needed after many repairs and issues. I appreciate the follow through and transparent communication! They will make sure to follow up and help when needed. Thank you Scott and team!!!!
Response from the owner:Hi Robin, Thank you so much for giving us an opportunity to make this right. We're happy to hear your system is running good now & we were able to turn your experience around. Thank you for trusting us with your home.
12/11/25

Same day update! I want to applaud Scott, the owner, for contacting me about my concerns regarding the labor charge for our last job. It was a disappointment that I had to have such an expensive charge on a relatively new unit. However, we talked about it, and he’s going to try to help. I appreciate any owner who listens to customers and wants to try to make things right. Thank you, Scott. I guess I don’t have to shop around for a new AC company for now.

12/11/25
Just to clarify. My response says that I’m frustrated to pay for labor for a warranty repair. I didn’t understand this was a warranty repair and I always am fine with paying for labor if a job is done. I believe my review explains my frustration with flat fees no matter how long the job takes.

10/8/25
Update today. The price that was quoted me was not only labor. They are charging flat fees for jobs. This is a change from the past with HVAC companies , but with more explanation and a little flexibility, I think we will stay with Scott’s for the time being. We’ll see how it goes. They still remain extremely responsive and professional and kind. This is worth something. They also come quickly when you have a problem.

This is a big change in my review for this company. Over the past five years things have changed. The company I used to trust I am now very skeptical of. They no longer charge labor by the hour so that you pay more for something that is more difficult and less for something that is less difficult. Just flat fees. And extremely high ones at that! Guess I’m looking for a new company now.
Response from the owner:Hi Karon, Thank you for trusting us with your home all these years. I can understand your frustration in having to pay labor for a warranty repair. The warranty from the manufacturer (not us) only covers the part itself. We value our customers and our community & want to make sure we take care of you and your home. We've left you a message & hope you'll return our call so we can make this right.
Chelsie was absolutely amazing!! She was on time, super friendly and personable! She was knowledgeable and even took the time to explain the problem and solution with our ac. I highly recommend them to service your HVAC needs!
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