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

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

Here, the experts at Covington Air Systems 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 built to withstand harsh weather conditions like snow in the winter. These machines are built with durable 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 manufactured to protect the internal elements from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

One of the reasons you should avoid covering 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 trapping moisture inside the unit produces the perfect conditions for mold and mildew to flourish.

Mold and mildew not only have a bad odor, but they can also create health risks, especially for household residents with respiratory issues or allergies. Additionally, the excess 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 clean of debris, allowing for efficient airflow and preventing moisture buildup.

3. Covered AC Systems Can Attract Animals

Human beings aren’t the only ones who prepare for winter. Animals that live around your home are also searching for a warm, cozy place to crash for the winter months. For many creatures, a covered air conditioner is an ideal winter dwelling.

Birds, mice, chipmunks and even rats often make nests inside covered air conditioners. Animals dwelling in a covered AC unit can cause many problems. Mice can chew through wires, insulation and other parts, causing damage that may require expensive repairs. Debris animals bring into the AC to create a warm and comfortable bed can block airflow and ventilation, reducing the efficiency of the appliance and potentially causing it to overheat. Additionally, animal excrement can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps deter animals, because an uncovered AC gives them less shelter from the elements than a covered unit. That’s better for your air conditioner—and leaves you with less mess to clean up and things to repair when winter is over.

4. An AC Cover Restricts Airflow

Another reason not to cover your air conditioner in the winter is because a cover restricts airflow through the unit. Adequate airflow is vital for the AC system because it facilitates heat exchange and allows the unit to cool properly. 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 use 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 lack of correct airflow could cause the compressor to overheat, causing its failure or damage.  That’s why it is crucial to ensure the outdoor unit is free from 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 lot more effective to do a little maintenance for your air conditioner than to cover your outdoor AC unit.

There are several key maintenance activities you should prioritize to ensure maximum performance and longevity of your AC unit. First, it’s a good idea to check your outdoor AC unit regularly and clear any debris such as leaves, twigs and dirt to maintain proper airflow. Second, inspect and clean the coils, fins and filters to make sure there isn’t any dirt and dust buildup that would impede successful 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 prevents costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive plan of action that can greatly benefit your entire HVAC system in the long run.