Troubleshoot A/C Noises Before Scheduling HVAC Service

- Published by
AC Noise

Here’s a potentially scary story: it’s a hot day in the Orlando area and the heat index is flirting with 100 degrees. You escape indoors to avoid melting onto the sidewalk, and suddenly the air conditioner makes a not-so-good noise. Yikes! Fortunately, you can troubleshoot A/C noises if this ever happens to you. Here’s a quick guide:

  • Loud banging noises may mean that the A/C motor is failing or that a rotating shaft has come unbalanced on its bearings. It could also mean that something is hitting the fan, which could be a serious problem.
  • Are you hearing a loud clunk, or a sound like shoes knocking around in the dryer, when the system shuts off? Have someone check the blower fan assembly, which could be loose.
  • A constant hum and intermittent buzz from the outdoor compressor unit could be that the compressor motor has seized or the contactor relay or start-run capacitors are bad.
  • Clicking and ticking noises coming from your system, especially just after it shuts off, could mean a fan is wobbling and hitting something. It could also mean loose hardware or a malfunctioning relay.
  • If you’re hearing a loud hissing from the A/C, watch out! Just like in the animal kingdom, it could indicate danger. In an air conditioner, it might indicate dangerous over-pressure conditions in the unit.
  • Popcorn noises? This could indicate a problem in the refrigerant line. Refrigerant passes from a gas stage to a liquid stage and back again as it passes through various parts of the system. When it stays in liquid form, it can lead to refrigerant flooding and make noises like these. An HVAC professional should take a look at this immediately.

While being able to troubleshoot A/C noises can give you a bit of insight into your unit, it’s always useful to get a professional opinion. If you have any concerns about your A/C this summer, call Scott’s Heating & Air Conditioning!

  
 

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!

Tags: , ,

Categorised in:

AC Service Testimonials

Excellent
4.7
review us on
I had an excellent service call with Daniel today. He quickly diagnosed the problem with my ac and explained the issues, all my options, and prices. He explained everything to me such that I understood what was going on, and felt totally comfortable with the decision I made. The office staff was excellent, as well. I plan to replace my ac before year's end and will definitely purchase from Scott's. Thank you! It's so great to do business with competent, courteous, and efficient individuals.
The professionalism of the parties I spoke with and/or met spoke words. Things were explained in terms I could understand throughout the process. Even though the instillation took 2 days due to some issues, the team did their best to have my AC replaced and running by the end of day 2 and kept us comfortable in the mean time. I highly recommend this company for any AC needs…
Scots can always be counted on to keep our AC running properly with friendly, on time, professional technicians.
I had a new unit installed back in 2022 and have been having regular maintenance twice yearly since then. All has been well. Today I was scheduled for maintenance once again and my unit was taken care of, but my technician Allen pointed out that my other unit outside (not installed or maintained by Scott's) had frayed wires on the outside condenser which would soon lead to a short on that unit. He offered to get me a quote to fix that and I agreed to receiving a quote. He was able to provide the fix right away and had that taken care of in less than an hour. I really appreciated the extra attention he paid to the overall area, and that he was willing to repair something that was not installed by his company. It was his genuine concern that took precedence. I will continue to recommend this company and will most likely have them as my provider when that second unit needs replacement.
js_loader

Recent Posts