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

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

Here, the specialists at ACS Heating and Air Conditioning 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

Outside AC units are built to withstand harsh weather conditions like snow in the wintertime. These machines are built with sturdy materials and hardware 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. Covered AC Systems may Encourage Mold Growth

One of the reasons you should avoid covering your air conditioner in the cold months 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 produces the perfect conditions for mold and mildew to flourish.

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

Instead of covering the unit, instead provide proper drainage and keep the area around the unit cleared 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 winter months. For many creatures, a covered air conditioner is an awesome winter home.

Birds, mice, chipmunks and even rats often make nests inside covered air conditioners. Animals dwelling in a covered air conditioner can cause numerous problems. Rodents 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 bed can block airflow and ventilation, decreasing the efficiency of the appliance and potentially causing it to overheat. Moreover, animal droppings can result in unsanitary conditions and potent odors.

Leaving your air conditioner uncovered helps dissuade wildlife, because an uncovered AC gives them less shelter from chilly temperatures than a covered unit. That’s better for your cooling system—and leaves you with less mess to pick up and things to repair when winter is over.

4. An AC Cover Restricts Airflow

Another reason you shouldn’t cover your air conditioner in the winter is because a cover restricts airflow through the unit. Adequate airflow is essential for the AC system because it helps with heat exchange and permits the unit to cool effectively. When airflow is constrained, the system has to work harder to maintain the desired temperature, resulting in greater energy consumption and strain on the components.

In addition, if you run your air conditioner 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 absence of appropriate airflow could cause the compressor to overheat, resulting in its failure or damage.  That’s why it is essential to ensure the outdoor unit is free from blockages and is not covered to maintain optimal airflow.

5. AC Maintenance Is More Effective Than Covering Your Air Conditioner

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

There are a number of key maintenance projects you should prioritize to ensure optimal operation and longevity of your AC unit. First, it’s smart to look at your outdoor AC unit regularly and remove any debris such as leaves, small branches and dirt to maintain proper airflow. Second, examine and clean the coils, fins and filters to make sure there isn’t any dirt and dust buildup that would prevent successful 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 prevents costly repairs. Rather than using a cover, investing 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.