As the scorching summer sun starts to fade and the cooler temperatures of fall starts to settle in, residents of Macon start preparing their homes and yards for the the upcoming cold weather. For many, that leads to the question of whether they should cover their exterior AC for the winter.

While it may seem like a smart idea, in reality there are multiple reasons why you shouldn’t cover your AC unit in the winter. Along with not being something you need to do, covering your outdoor air conditioning equipment can even cause problems.

Here, the professionals at Air Temperature Control share five reasons why covering your air conditioning equipment doesn’t need to be on your fall to-do list and what you should do instead.

1. Your AC can Handle Snow

Outdoor AC units are designed to withstand harsh weather conditions like snow in the winter season. These units are built with sturdy materials and hardware that can handle the outdoor elements without damage. The coils and fins of the unit are constructed to resist corrosion, and the housing is crafted to protect the internal components from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

One of the reasons you shouldn’t cover your AC unit in the winter is because doing so can trap moisture—which is definitely not what you want in your outdoor unit. That’s because allowing moisture to collect inside the unit produces the perfect conditions for mold and mildew to spread.

Mold and mildew not only have a bad aroma, but they can also present health risks, especially for household residents with respiratory issues or allergies. Plus, the trapped moisture can corrode the internal components of the AC unit.

Rather than covering the unit, instead provide proper drainage and keep the area around the unit clean of debris, allowing for efficient airflow and preventing moisture buildup.

3. Covered AC Systems Can Host Animals

You and your family aren’t the only ones who get ready for winter. Animals that live around your home are also searching for a warm, cozy place to live for the wintry months. For many critters, a covered air conditioner is an awesome winter home.

Birds, mice, chipmunks and even rats frequently make winter dens inside covered air conditioners. Animals dwelling in a covered AC unit can cause several problems. Rats can chew through wires, insulation and other parts, causing damage that may require pricey repairs. Debris animals bring into the AC to create a warm and comfortable nest can impair airflow and ventilation, decreasing the efficiency of the unit and potentially causing it to overheat. Moreover, animal excrement can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps deter wildlife, because an uncovered AC gives them less shelter from cold weather than a covered unit. That’s better for your air conditioner—and leaves you with less mess to clean up and things to repair once the snow melts.

4. Covering Your Air Conditioner Restricts Airflow

Another reason not to cover your AC unit in the winter is because a cover limits airflow through the unit. Adequate airflow is crucial for the AC system because it assists heat exchange and allows the unit to cool effectively. When airflow is reduced, the system has to work harder to achieve the desired temperature, leading to increased energy consumption and strain on the components.

In addition, if you use your air conditioner without realizing that the outside unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the absence of appropriate airflow could cause the compressor to overheat, causing its failure or damage.  That’s why it is vital to ensure the outdoor unit is free from blockages and is not covered to maintain optimal airflow.

5. AC Maintenance Is More Effective Than Covering Your Air Conditioner

The bottom line is, it’s much more effective to do a little maintenance for your air conditioning unit than to cover your outdoor AC unit.

There are numerous key maintenance projects you should prioritize to ensure maximum function and longevity of your AC unit. First, it’s wise to look at your outdoor AC unit regularly and get rid of any debris such as leaves, sticks and dirt to promote proper airflow. Second, check and clean the coils, fins and filters to make sure there isn’t any dirt and dust buildup that would hinder efficient heat exchange or airflow.

Routine air conditioning maintenance not only improves efficiency, but it also helps extend the unit’s life span, reduces energy consumption and protects against costly repairs. Rather than using a cover, committing time and effort into routine air conditioning maintenance is a proactive plan of action that can substantially benefit your entire HVAC system in the long run.