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Polar Bear Air Conditioning & Heating Inc. Blog

How Dirty Coils Lead to Air Conditioning Repair

Many people are surprised to learn that an air conditioner does not actually create cool air. Rather, it moves the heat from the air in your home back to the outdoors. Your air conditioning system contains two coils that help this to happen—the evaporator coil and the condenser coil. As refrigerant moves to these components, it undergoes phase conversions that allow heat to absorb or dissipate. But these coils, and the rest of your AC system, require cleaning and maintenance to prevent the need for air conditioning repair later on.

Dirty coils are problematic because these parts are so important to the refrigeration cycle. Refrigerant changes from a liquid to a gas at the indoor evaporator coil, absorbing heat as a fan blows the warm air from your home over the coil. The fan then distributes cool air through the ducts. Refrigerant becomes highly pressurized and heated at the compressor outdoors and then moves to the condenser coil, where it condenses into a liquid, giving off heat into the outside air. Refrigerant continues to cycle through both parts of the system, repeating the process over again.

The coils are especially susceptible to dust because fans suck in air to blow over both the indoor and outdoor coils. If a coil is dirty, it means the refrigeration process cannot occur as efficiently as it should. Dirty coils impair their ability to participate in heat exchange, which means that other parts will have to work harder to make up for the deficiency. And as other parts run for longer periods of time, they may begin to wear out, so you’ll have to call for air conditioning repair sooner than is usually necessary. You’ll probably notice reduced cooling capacity when you have dirty coils, or you may even feel warm air from the vents.

Maintenance technicians clean the coils during any maintenance visit as well as other pertinent tasks that help to restore efficiency and keep problems at bay.

Schedule maintenance to prevent the need for air conditioning repair in Washington, D.C. Call Polar Bear Air Conditioning & Heating Inc. for maintenance or repairs today!

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