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

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

Here, the specialists at Rescue Heating & Air 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 Unit Isn’t Damaged by Snow

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

2. Covering Your Air Conditioner Can Cause Mold

One of the reasons you shouldn’t cover your outdoor air conditioning equipment in the winter is because doing so can trap moisture—which is not at all what you want in your outdoor unit. That’s because sealing moisture inside the unit produces the perfect conditions for mold and mildew to flourish.

Mold and mildew not only have a bad aroma, but they can also create health risks, especially for household residents with respiratory issues or allergies. Additionally, the unwanted 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 clear 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 get ready for winter. Animals that live around your home are also hunting for a warm, cozy place to live for the cold months. For many animals, a covered air conditioner is an awesome winter refuge.

Birds, mice, chipmunks and even rats often make winter dens inside covered air conditioners. Animals dwelling in a covered AC unit can cause many problems. Rodents can chew through wires, insulation and other connections, causing damage that may require pricey repairs. Debris animals bring into the AC to make themselves a warm and comfortable nest can obstruct airflow and ventilation, lowering the efficiency of the AC and potentially causing it to overheat. In addition, animal droppings can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps dissuade creatures, 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 pick up and things to repair once the snow melts.

4. Covering Your Air Conditioner Restricts Airflow

Another reason not to cover your air conditioning equipment in the winter is because a cover restricts airflow through the unit. Adequate airflow is essential for the AC system because it assists heat exchange and permits the unit to cool effectively. When airflow is restricted, the system has to work harder to achieve the desired temperature, resulting in greater energy consumption and strain on the components.

In addition, if you turn on your air conditioner without realizing that the exterior 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 vital to ensure the outdoor unit is always cleared of any 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 lots 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 optimal operation 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, twigs and dirt to promote proper airflow. Second, examine 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 enhances efficiency, but it also helps extend the unit’s life span, lowers energy consumption and avoids costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive strategy that can substantially benefit your entire HVAC system in the long run.