Air Conditioning systems are a technical achievement of modern life. They are mechanical networks so complex that it’s inevitable to hear noises coming from them every now and then.
However, not all Air Conditioning noises are the same. This guide will help you understand what are the likely causes of the five most common AC noises so you can act accordingly.
1. Banging, One of the Most Common AC Noises
A banging sound is the telltale sign of a loose or broken component. Banging sounds may be caused as well by problems with the compressor or the blower fan. Calling an experienced AC technician is the only way to know for sure what the source of the noise is.
2. Squealing/Screeching
A squealing or screeching noise is a typical indicator of a bad fan belt in the blower. A squealing noise during the starting phase is normal in some units. But if the sound persists, it’s best to call an HVAC professional to check it out.
3. Clicking
Clicking noises are normal when some AC units turn on and off. If the clicking sounds continue while your unit is operating, you should pay attention. These sounds are usually a sign of electrical problems, and the causes range from a defective relay to a failing thermostat.
4. Buzzing
Buzzing sounds may have several causes. Some of them can be serious, so it’s advisable to call an HVAC expert to take a look at your system. Possible sources of buzzing sounds include:
- Compressor malfunction
- Loose parts
- Debris in the indoor or outdoor unit
- Dirty air filters
- Refrigerant leaks
5. High-Pitched Whistling/ Screaming AC Noises
This sound should put you on alert immediately. Whenever you hear a high-pitched whistling or screaming noise coming from your unit, turn it off immediately and call an AC expert. The most likely cause for this type of noise is a refrigerant leak, which poses a danger to your family. Another possible cause is high pressure within your compressor, a problem that also requires expert help.
At Zero Heating AC & Refrigeration we install, repair, maintain and replace equipment and service all brands of air conditioning. We offer dependable service delivered with the utmost professionalism.
We’re located at 4142 Hickory Sun, San Antonio, Texas. Contact us today by telephone (210-900-0824), using our website or through our social media accounts on Facebook and Twitter and to schedule a repair or to get an estimate. We also offer financing plans for your convenience!