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Many homeowners cover their air conditioner after summer has ended to protect it throughout the cold season. While this makes sense when leaves are falling or during the occasional snowfall, it can lead to problems. An outdoor AC compressor is designed to withstand the elements, so in most cases, professionals recommend leaving it uncovered. Here’s a closer look at why you should follow this advice.

Why Shouldn’t You Cover Your AC Unit After the Summer?

A cover creates a warm, inviting nesting spot for rodents looking to get out of the cold. Mice may pack dead foliage into the unit’s grates, which can tangle around the blower. They may also chew on electrical wires or insulation. It also brings them closer to your home, potentially leading them to venture inside in search of food.

AC covers can trap moisture as well, which may rust metal components or damage wiring and circuit boards. These problems require extensive repairs and heavily impact performance by wearing down parts.

air conditionerMoisture and warmth also facilitate the growth of mold underneath the cover. Spores may cause severe allergic reactions, which is why year-round airflow is so essential for your system. Though outdoor mold isn’t as dangerous as growth inside the home, blocking the airflow with a cover may lead to spores on the evaporator coil or in the drip tray indoors.

What Can You Do Instead?

Establish a winter care plan instead of covering the air conditioner. Trim overhanging tree branches so that they don’t drop debris on the metal housing. Make sure to clear foliage that collects after a storm, and spray the unit with a garden hose to keep dirt and grime from building up.

The only advised time to cover your unit is during a rare North Carolina blizzard, a hailstorm, and severe weather. When needed, choose a breathable cover or lay plywood over the unit as a weather barrier.

 

If you’re overdue for an air conditioner inspection, contact Comfort Tech Heating and Air Conditioning of Thomasville, NC. These professionals have served the area since 1994 and offer a two-year warranty on their services. They tackle heating and air conditioning installations and repairs, inspections, and more. Call (336) 472-5858 and mention their website to receive $20 off your scheduled service. Refer a friend for installation or replacement services and receive a $50 Visa® check card when they commit. 

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