April 6, 2021
Air Conditioner

When your AC starts to make noise, do you avoid calling a professional because you dread the cost of repairs? At Underwood AC LLC, we help homeowners in Davenport, and surrounding areas of Florida keep their air conditioning systems running efficiently during the summer. We identify the issue that is causing noise from your air conditioning system, and we perform reliable, affordable, quality repairs. Here are the top 10 noises from air conditioners and what they mean.

1. Rattling

Rattling noises from residential air conditioning systems are typically a sign that you have a loose component. If you want to troubleshoot the problem on your own, try to pinpoint the origin of the noise. We recommend that you start with the outdoor unit. Do not remove the cover. Just check around the base of the unit to see if one of the bolts has come loose. If the sound is coming from inside the unit or from your vents, it’s time to call the experts at Underwood AC LLC. One of the fan blades may be damaged. We will send a technician right over, and you should shut off your air conditioner until we arrive.

2. Hissing

The refrigerant of your cooling system is inside a closed loop that prevents the substance from leaking. If you hear hissing coming from the outdoor unit of your AC, it is most likely a leak in the tube that holds the refrigerant. Although you may be able to temporarily plug the hole with duct tape, it is best to have a professional do the proper repairs.

3. Squealing

Squealing is one of the most annoying sounds that Davenport homeowners experience. This typically indicates that pressure has built up inside the unit, and the sensors are not functioning properly. These sensors are designed to shut off the unit when the pressure reaches a threshold, so if your AC is squealing and continues to run, you may have a couple of problems that need attention. Squealing is another noise that means you should shut down the unit and call us right away. High pressure inside an air conditioner is dangerous.

4. Humming

Do you find yourself humming along with your air conditioner? Although this noise can easily be ignored, you should find the source of the sound. AC units do have a normal level of humming, but loud humming that you find annoying indicates that something has come loose. When we troubleshoot humming noises, it is usually caused by vibration inside the unit that can be easily repaired with some new bolts.

5. Clicking

When we talk about unusual clicking noises from a residential air conditioning unit, we do not mean the click that you hear when the unit turns on or off. Clicking is only problematic when it is a constant sound while the unit is running. Clicking noises have a range of causes, from electrical issues to loose parts and damaged components. We can find the problem and give you an estimate for the repairs.

6. Whistling

Your air conditioner should not serenade you with lovely whistling sounds. A whistle from your AC typically happens after an unnoticed hissing is not repaired. The refrigerant is leaking from the unit, and it needs to be repaired by one of our technicians. Turn the unit off, and call us to schedule an appointment.

7. Banging

Like whistling, banging means that a small problem is getting worse. The sound is caused by parts inside the air conditioning unit moving around and banging into the outer shell, or worse, other parts. Shut the unit off, and give us a call.

8. Buzzing

If you hear buzzing coming from your air conditioning unit, shut it off. This means that you have an electrical issue that may damage the unit or cause a short. Turn off the unit, and call us to have a technician come by right away.

9. Gurgling

Now, gurgling is definitely an unusual sound to hear coming from your AC unit. Some homeowners in the Davenport area describe it as a bubbly noise. This is typically due to a clogged or damaged drain line. The sound you hear is water building up inside the unit. You can try to unclog the drain. If that doesn’t work, give us a call.

10. Clanking

Clanking is the third noise that you hear when something inside the AC unit has come loose. It may be the fan, blower, or fan blades. Turn off the unit, and call Underwood AC LLC.

Expert AC Services

Underwood AC LLC offers expert air conditioning and heating services for homes in Davenport and surrounding areas of Florida. If you have an unusual noise coming from your AC unit, we can help. We also offer a wide array of heating services. Give us a call to schedule an appointment.

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