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

While it may seem like a good idea, the truth is there are several reasons why you shouldn’t cover your AC unit in the winter. In addition to not being something you need to do, covering your outdoor air conditioning equipment can sometimes cause problems.

Here, the professionals at Parker County Cooling & Heating 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

Exterior AC units are built to withstand harsh weather conditions like snow in the winter. These units are built with durable materials and components that can handle the outdoor elements without damage. The coils and fins of the unit are engineered to resist corrosion, and the housing is crafted to protect the internal parts 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 winter is because doing so can trap moisture—which is definitely not what you want in your outdoor unit. That’s because sealing moisture inside the unit produces the perfect conditions for mold and mildew to thrive.

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

Rather than 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 make plans for winter. Animals that live around your home are also hunting for a warm, cozy place to live for the winter months. For many critters, a covered air conditioner is an ideal winter dwelling.

Birds, mice, chipmunks and even rats frequently make nests inside covered air conditioners. Animals dwelling 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 make themselves a warm and comfortable nest can impair airflow and ventilation, decreasing the efficiency of the unit and potentially causing it to overheat. Additionally, animal waste can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps discourage creatures, because an uncovered AC provides less shelter from the elements than a covered unit. That’s better for your air conditioner—and leaves you with less mess to pick up 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 essential 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 reach the desired temperature, causing greater energy consumption and strain on the components.

In addition, if you run your air conditioning without realizing that the outside 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, resulting in its failure or damage.  That’s why it is necessary to ensure the outdoor unit has no blockages and is not covered to maintain optimal airflow.

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

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

There are numerous key maintenance projects you should prioritize to ensure the best possible performance 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, sticks 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 impede successful heat exchange or airflow.

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