As the hot summer sun starts to fade and the cooler temperatures of fall starts to settle in, residents of Weatherford start preparing their homes and yards for the the upcoming cold weather. For many, that leads to the question of whether they ought to cover their exterior air conditioner for the winter.

While it may seem like a smart idea, the fact is there are several reasons why you shouldn’t cover your AC unit in the winter. On top of not being needed, covering your outdoor air conditioning equipment can actually cause problems.

Here, the experts at Parker County Cooling & Heating 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. Snow won’t Hurt Your AC

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

2. Covering AC Systems can Encourage Mold

One of the reasons you shouldn’t cover your AC unit in the cold months is because doing so can trap moisture—which is the opposite of 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 spread.

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

Instead of 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. A Covered Air Conditioner Can Attract Animals

Humans aren’t the only ones who prepare for winter. Animals that live around your home are also hunting for a warm, cozy place to hide out for the cold months. For many animals, a covered air conditioner is an ideal winter refuge.

Birds, mice, chipmunks and even rats commonly make homes inside covered air conditioners. Animals dwelling in a covered AC unit can cause many problems. Rodents can chew through wires, insulation and other components, causing damage that may require costly repairs. Debris animals bring into the AC to create a warm and comfortable nest can impair airflow and ventilation, limiting the efficiency of the unit and potentially causing it to overheat. Additionally, animal droppings can result in unsanitary conditions and potent odors.

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

4. An AC Cover Restricts Airflow

Another reason it’s better that you don’t cover your AC unit in the winter is because a cover restricts airflow through the unit. Proper airflow is essential for the AC system because it helps with heat exchange and enables the unit to cool effectively. When airflow is constrained, the system has to work harder to maintain the desired temperature, causing greater energy consumption and strain on the components.

In addition, if you use your AC without noticing that the outside 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 vital to ensure the outdoor unit is free from barriers and is not covered to maintain the best possible airflow.

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

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

There are numerous key maintenance projects you should prioritize to ensure the best possible operation and longevity of your AC unit. First, it’s wise to examine your outdoor AC unit regularly and clear 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 efficient heat exchange or airflow.

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