As the sweltering summer sunshine starts to fade and the refreshingly cool weather of fall starts to settle in, residents of Booneville 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 air conditioning unit for the winter.

While it may seem like a smart idea, the reality is 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 professionals at Booneville Heating & Cooling 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 can Handle Snow

Outside AC units are designed to withstand harsh weather conditions like snow in the wintertime. These systems 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 components from moisture and debris.

2. Covering Your Air Conditioner Can Cause Mold

One of the reasons you should not cover your AC unit in the wintertime 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 creates the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have an unpleasant odor, but they can also pose health risks, especially for household residents 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 provide 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 Host Animals

People aren’t the only ones who make plans 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 the perfect winter refuge.

Birds, mice, chipmunks and even rats frequently make winter dens inside covered air conditioners. Animals living in a covered air conditioning unit can cause many problems. Mice 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 home can impair airflow and ventilation, reducing the efficiency of the appliance and potentially causing it to overheat. Additionally, animal droppings can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps discourage wildlife, because an uncovered AC gives them less shelter from the elements than a covered unit. That’s better for your cooling system—and leaves you with less mess to throw away 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 restricts airflow through the unit. Proper airflow is vital for the AC system because it helps with heat exchange and allows the unit to cool properly. When airflow is restricted, the system has to work harder to achieve the desired temperature, resulting in increased energy consumption and strain on the components.

In addition, if you turn on your AC 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 correct airflow could cause the compressor to overheat, causing its failure or damage.  That’s why it is essential to ensure the outdoor unit has no 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 air conditioning unit than to cover your exterior AC unit.

There are a number of key maintenance projects you should prioritize to ensure optimal performance 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, small branches and dirt to allow proper airflow. Second, inspect 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.

Regular 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 significantly benefit your entire HVAC system in the long run.