There isn't a telltale sign of AC damage more obvious than rattling sounds coming from the equipment during operation. Unfortunately, many homeowners ignore these strange noises, hoping the equipment will recalibrate itself. But this only allows the underlying issue to worsen and further strain the equipment's operation. That's why you should contact air conditioning repair services as soon as you notice that your equipment sounds funny during operation.

There are various reasons why your air conditioner might start to rattle, some of which are more serious than others. This article points out four possible reasons for a rattling AC unit and how your technician will go about fixing the underlying issue.

1. Loose Parts

One of the most common causes of a rattling AC unit is loose parts. Over time, certain AC unit parts may become loose and begin to rattle around when the unit is in operation. Thankfully, all your technician has to do to restore quiet AC operation is tighten these parts so they don't vibrate when the equipment is cycling.

2. Debris Build-Up in the Unit

It's quite normal for dust to settle on your cooling equipment's moving parts. Over time, the dust builds up so much that it impedes the unit's operation. Aside from dust settling on the indoor unit, leaves, twigs, and small pieces of gravel or sand can also accumulate in the outdoor cabinet. Naturally, the debris build-up will vibrate within the outdoor unit, making your equipment rattle during operation.

And while you might be tempted to remove the debris on your own, you should resist the DIY urge as you might unconsciously damage your equipment. You're better off letting air conditioning repair services remove the debris and fix any moving parts that might have sustained damage due to debris buildup.

3. Dirty Evaporator Coils

Dirty evaporator coils can also cause your AC unit to rattle during operation. And while the noise will be irritating, you should be more concerned about the condition of the coils because they are responsible for absorbing heat from inside your home. Addressing the root of the problem will restore quiet operation and protect this essential AC component from damage. After all, you wouldn't want to replace the evaporator coil because you waited too long to clean it.

4. Refrigerant Leaks

A rattling AC unit may sometimes indicate a more serious issue, such as a refrigerant leak. If your AC unit is leaking refrigerant, it's important to have it fixed as soon as possible. Your technician will be able to repair the leak and replenish your AC unit's refrigerant levels, stopping the rattling noise.

If your AC unit has been making strange noises lately, don't panic! Instead, contact air conditioner repair services.

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