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Why Is My Window Air Conditioner Noisy?

graphic of a in-window ac unitDo you currently have multiple window unit air conditioners in your home that are making a ton of noise? Unfortunately, these window units can become extremely noisy as they age and are used more. There are a few reasons why.

Potential Causes of Loud & Noisy Window AC Units

Unknown Debris

If one of your window units starts making loud or grinding noises, check to see if something has fallen into it. Since most of the unit is hanging outside, leaves, animals, and other debris can easily enter it. To inspect the inner workings of a window unit, unplug it, open the front grill, and peek in with a flashlight.

Damaged Fan Blades

When debris finds its way inside the window unit, it can come into contact with the fan blades. Once a fan blade becomes bent, it will continue to make noise until it has been straightened out. Use a pair of pliers to remedy this situation.

Lack of Lubrication

If the fan motor of a window air conditioner is not properly lubricated, it can begin to emit a loud, continuous noise. You can open your window unit to lubricate the fan motor, but be aware that many of the motors are sealed within and are hard to reach.

Feel the Vibrations

Since window units sit in the frame of a window, rattling noises and vibrations can occur if they’re not mounted properly. Since air conditioners are heavy and have multiple moving parts, you must secure them firmly within the window frame. You should also be aware of the size of the unit and how it compares to the size of the window frame.

Short, Useful Life

Relying on small window units to cool an entire house means they’ll be on for extended periods of time to reach the desired temperature. This will add a lot of wear and tear to the units, thus reducing their useful life and efficiency. The harder a window unit has to work, the louder it will become.

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Quiet Your Noisy Air Conditioner

Window air conditioners can become extremely loud and noisy if anything goes wrong with them. If you’re sick of having an unevenly cooled home, high energy bills, and hearing constant (and loud) noises, contact Lancaster Plumbing, Heating, Cooling & Electrical to learn about installing a cooling system.

To learn more about cooling systems or to schedule an appointment, call us or contact us online

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Why Choose Lancaster Plumbing, Heating, Cooling & Electrical

Serving Lancaster County with Top-Rated Home Solutions Since 1904

When you need a reliable partner for all your home services in the Lancaster area, trust Lancaster Plumbing, Heating, Cooling & Electrical. From our location in East Petersburg, we can provide fast, professional HVAC, plumbing, and electrical services anywhere in Lancaster County and the surrounding communities. We have some of the best technicians in the business. Our company features:

  • Industry-leading quality assurance
  • Trained, experienced personnel
  • Background-checked, drug-tested technicians
  • Convenient scheduling
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  • An A+ rating from the BBB

When you need the ultimate in-home comfort, choose Lancaster Plumbing, Heating, Cooling & Electrical. Call us today at (717) 207-8198 or contact us online to schedule service in Lancaster or South Central Pennsylvania.