As the scorching summer sun starts to fade and the cooler temperatures of fall starts to settle in, residents of Haines City start preparing their homes and yards for the wintertime. For many, that leads to the question of whether they should cover their outside air conditioner for the winter.

While it may seem like a great idea, the reality is there are a number of reasons why you shouldn’t cover your AC unit in the winter. Along with not being needed, covering your outdoor air conditioning equipment can actually cause problems.

Here, the experts at Air Commander's Heating & Air Conditioning Co. share five reasons why covering your AC 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

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

2. Covering AC Systems can Encourage Mold

One of the reasons you should avoid covering your outdoor air conditioning equipment in the wintertime is because doing so can trap moisture—which is not at all what you want in your outdoor unit. That’s because allowing moisture to collect inside the unit generates the perfect conditions for mold and mildew to spread.

Mold and mildew not only have an unpleasant odor, but they can also pose health risks, especially for people with respiratory issues or allergies. Additionally, the trapped moisture can corrode the internal components of the AC unit.

As an alternative to covering the unit, instead ensure proper drainage and keep the area around the unit free of debris, allowing for efficient airflow and preventing moisture buildup.

3. Your Covered Air Conditioning Unit Can Attract Animals

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

Birds, mice, chipmunks and even rats often make nests inside covered air conditioners. Animals living in a covered AC unit can cause many problems. Rodents can chew through wires, insulation and other connections, causing damage that may require expensive repairs. Debris animals bring into the AC to create a warm and comfortable nest can impair airflow and ventilation, decreasing the efficiency of the appliance and potentially causing it to overheat. In addition, animal excrement can result in unsanitary conditions and potent odors.

Leaving your air conditioner uncovered helps dissuade wildlife, because an uncovered AC provides less shelter from cold weather than a covered unit. That’s better for your air conditioner—and leaves you with less mess to throw away and things to repair when winter is over.

4. Covering Your Air Conditioner Restricts Airflow

Another reason not to cover your air conditioner in the winter is because a cover blocks airflow through the unit. Adequate airflow is crucial for the AC system because it facilitates heat exchange and permits the unit to cool properly. When airflow is severely limited, the system has to work harder to achieve the desired temperature, leading to greater energy consumption and strain on the components.

In addition, if you turn on your air conditioning without noticing that the outdoor unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the shortage of appropriate airflow could cause the compressor to overheat, resulting in its failure or damage.  That’s why it is crucial to ensure the outdoor unit has no obstructions and is not covered to maintain maximum airflow.

5. AC Maintenance Works Better Than Covering Your Air Conditioner

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

There are a number of key maintenance activities 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 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 impede effective heat exchange or airflow.

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