As the hot summer heat starts to fade and the refreshingly cool weather of fall starts to settle in, residents of Odessa start preparing their homes and yards for the wintertime. For many, that leads to the question of whether they need to cover their outdoor AC for the winter.

While it may seem like a good idea, the fact is there are many 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 sometimes cause problems.

Here, the experts at Redhawk Heating & Air Conditioning 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

Outdoor AC units are supposed to withstand harsh weather conditions like snow in the wintertime. 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 elements from moisture and debris.

2. Covering Your Air Conditioner Can Cause Mold

One of the reasons you shouldn’t cover your air conditioner 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 flourish.

Mold and mildew not only have an unpleasant aroma, but they can also pose health risks, especially for household residents with respiratory issues or allergies. Plus, the unwanted 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 clear of debris, allowing for efficient airflow and preventing moisture buildup.

3. Your Covered Air Conditioning Unit Can Host Animals

You and your family aren’t the only ones who prepare 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 ideal winter home.

Birds, mice, chipmunks and even rats often make homes inside covered air conditioners. Animals dwelling in a covered air conditioner can cause many problems. Mice can chew through wires, insulation and other components, causing damage that may require expensive repairs. Debris animals bring into the AC to create a warm and comfortable home can impair airflow and ventilation, reducing the efficiency of the AC and potentially causing it to overheat. In addition, animal waste can result in unsanitary conditions and potent odors.

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

4. A Winter Cover for AC Units Restricts Airflow

Another reason it’s better that you don’t cover your air conditioner in the winter is because a cover blocks airflow through the unit. Proper airflow is crucial for the AC system because it facilitates heat exchange and enables the unit to cool effectively. When airflow is severely limited, the system has to work harder to maintain the desired temperature, resulting in increased energy consumption and strain on the components.

In addition, if you turn on your AC without knowing 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, leading to its failure or damage.  That’s why it is necessary to ensure the outdoor unit is free from blockages and is not covered to maintain maximum airflow.

5. AC Maintenance Works Better Than Covering Your Air Conditioner

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

There are a number of key maintenance tasks you should prioritize to ensure optimal function and longevity of your AC unit. First, it’s smart to look at your outdoor AC unit regularly and remove any debris such as leaves, sticks and dirt to allow proper airflow. Second, check and clean the coils, fins and filters to make sure they are free from dirt and dust buildup that would prevent effective 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 avoids costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive strategy that can substantially benefit your entire HVAC system in the long run.