Learning About HVAC Contractor Services

Sudden AC noises can be annoying and mysterious. Whether it's a rattling, clicking, humming, or buzzing sound, there are many culprits that could be causing the problem. 

Unfortunately, these sounds can range from minor to major problems that require professional attention. But before you call in an HVAC technician for help, here are some common culprits of AC noise and simple solutions you can try. 

Loose Screws

Loose screws in your air conditioning unit can be a common reason for the irritating rattling sounds you may be hearing. Over time, the regular mechanical operations of your AC may cause screws to loosen from their intended placements. These screws, when unfastened, can create a rattling noise as they bounce around inside your unit while it's running. 

Addressing this issue can be relatively straightforward. Begin by identifying the panel where the noise seems to be emanating. Unscrew this panel and visually inspect it for any loose screws. If you find any, simply tightening them with a screwdriver can often solve the problem. 

However, remember to turn off your AC before you start inspecting it, and make sure it's completely off and unplugged while you work.

Debris in the Unit

Another common cause of strange noises emanating from your AC unit could be the presence of debris. This is particularly common if your outdoor unit is not covered or if there are trees and bushes nearby. 

Leaves, twigs, and other detritus can easily get sucked into the unit and jostle about as the unit operates, leading to various sounds, including rattling, clicking, or buzzing.

Addressing this issue involves turning off and unplugging your AC unit before the inspection. Open the casing of your unit carefully and check for any visible debris. This could range from small leaves and twigs to larger obstructions like bird nests or accumulated dirt and dust. 

Removal of these can be done using a vacuum cleaner or manually by hand, depending on the size and amount of the debris. You could also use a leaf blower to clear out any smaller bits of debris. Once cleared, reinstall the panels and restart your AC with the confidence that the annoying noise is gone.

While quick fixes like these can sometimes fix the noise coming from your AC unit, if the sounds persist or become worse, it's best to contact an HVAC professional for a more comprehensive assessment. An expert technician can check the ducts and other components of your air conditioner and accurately determine what needs to be fixed. Reach out to an air conditioning repair service near you to learn more.