4 Potential Causes of an AC Rattling Noise

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ac rattling noise

A functioning air conditioning unit is a necessity for keeping your home cool and comfortable during the warm summer months. Encountering issues with your home’s cooling unit, such as an AC rattling noise, can not only be an annoyance but can also put your family and your home at risk, as such issues can reduce your air conditioner’s efficiency and decrease the comfort levels in your home. If you are experiencing an AC rattling noise, getting to the root of the issue is the first step in finding possible solutions. Today we will discuss four of the most common causes of an AC rattling noise to help you solve this issue for good and keep your home comfortable and cool!

1. Accumulated Debris 

Over time, it is common for many outdoor air conditioning units to accumulate debris such as leaves, dirt, branches, and more outdoor elements that can easily become stuck inside of an AC unit. While this can be harmless, debris buildup over time can disrupt your air conditioner’s performance and cause an unpleasant rattling noise. Solve this issue by cleaning out your AC before use each summer or every few months in regions where air conditioning will be used year-round. 

2. Broken Motor

A major indicator of a broken motor is a loud AC rattling noise. Old, outdated air conditioning motors can have broken bearings that need to be repaired or replaced and sometimes require lubrication in order to perform as desired. No matter the issue, your local heating and cooling professionals can perform maintenance, replacements, or repairs to your AC unit’s motor. 

3. Misaligned Fans

The fans inside of your air conditioner can become misaligned over time and, as a result of constant use, cause the fan’s blades to hit the inside of the unit, resulting in a loud AC rattling noise. While this can be harmless, it should be fixed as soon as possible to avoid further damage requiring a more extensive (and expensive) repair

4. Loose Panels or Screws

Every air conditioning unit has panels and screws that can fall out of place over time, creating a loud rattling sound within the unit. This is generally harmless but can create a loud, unpleasant sound that will not stop until the panels and screws are replaced. This can be done on your own or with the help of an air conditioning professional for maximum efficiency and to ensure the issue will not happen again in the future. 

Experiencing an unpleasant AC rattling noise? The experts at Confident Comfort Heating & Cooling can identify the cause and offer a timely and cost-effective solution. With decades of experience in the heating and air conditioning industry, our dedicated professionals work hard to provide high-quality air conditioning repair, replacement, and maintenance services to keep your home cool and your family safe and comfortable all year. From motor repairs to regular cleanings and everything in between, our team can identify and solve the cause of an AC rattling noise and get your AC working properly in no time!

Contact us today to learn more about our services or to get a free pricing estimate.