As the scorching summer sun starts to fade and the relief of fall starts to settle in, residents of Haines City start preparing their homes and yards for the winter. For many, that leads to the question of whether they ought to cover their exterior AC for the winter.

While it may seem like a great idea, in reality there are several reasons why you shouldn’t cover your AC unit in the winter. In addition to not being necessary, covering your outdoor air conditioning equipment can even cause problems.

Here, the experts at Air Commander's Heating & Air Conditioning Co. share five reasons why covering your air conditioner doesn’t need to be on your fall to-do list and what you should do instead.

1. Your AC Unit Isn’t Damaged by Snow

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

2. Covering Your Air Conditioner Can Cause Mold

One of the reasons you shouldn’t cover your AC unit in the winter is because doing so can trap moisture—which is not at all what you want in your outdoor unit. That’s because trapping moisture inside the unit generates the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have a bad odor, but they can also create health risks, especially for individuals with respiratory issues or allergies. Additionally, the excess moisture can corrode the internal components of the AC unit.

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

3. Covered AC Systems Can Attract Animals

Humans aren’t the only ones who prepare for winter. Animals that live around your home are also looking for a warm, cozy place to live for the cold months. For many creatures, a covered air conditioner is an awesome winter dwelling.

Birds, mice, chipmunks and even rats commonly make nests inside covered air conditioners. Animals living in a covered air conditioning unit can cause several problems. Rodents can chew through wires, insulation and other parts, causing damage that may require costly repairs. Debris animals bring into the AC to create a warm and comfortable place to get out of the cold weather can block airflow and ventilation, lowering the efficiency of the AC and potentially causing it to overheat. Moreover, animal droppings can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps dissuade creatures, because an uncovered AC provides less shelter from chilly temperatures than a covered unit. That’s better for your AC—and leaves you with less mess to pick up and things to repair once the snow melts.

4. An AC Cover Restricts Airflow

Another reason it’s better that you don’t cover your air conditioner in the winter is because a cover limits airflow through the unit. Adequate airflow is crucial for the AC system because it facilitates heat exchange and permits the unit to cool effectively. When airflow is constrained, the system has to work harder to maintain the desired temperature, causing greater energy consumption and strain on the components.

In addition, if you run your air conditioning without realizing that the exterior unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the absence of proper airflow could cause the compressor to overheat, causing its failure or damage.  That’s why it is necessary to ensure the outdoor unit has no barriers and is not covered to maintain maximum airflow.

5. AC Maintenance Offers More Benefits Than Covering Your Air Conditioner

The bottom line is, it’s a whole lot more effective to do a little maintenance for your cooling system than to cover your outside AC unit.

There are several key maintenance tasks you should prioritize to ensure optimal function and longevity of your AC unit. First, it’s a good idea to inspect your outdoor AC unit regularly and pull out any debris such as leaves, twigs and dirt to maintain proper airflow. Second, examine and clean the coils, fins and filters to make sure they are free from dirt and dust buildup that would hinder efficient heat exchange or airflow.

Scheduled air conditioning maintenance not only enhances efficiency, but it also helps extend the unit’s life span, decreases energy consumption and prevents costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive strategy that can significantly benefit your entire HVAC system in the long run.