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 should cover their outdoor AC for the winter.

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

Here, the experts at ACS Heating and Air Conditioning share five reasons why covering your air conditioner 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

Outdoor AC units are supposed 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 elements from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

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

Mold and mildew not only have an undesirable aroma, but they can also create health risks, especially for household residents with respiratory issues or allergies. Plus, the excess 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 cleared of debris, allowing for efficient airflow and preventing moisture buildup.

3. Covered AC Systems Can Host Animals

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

Birds, mice, chipmunks and even rats often make homes inside covered air conditioners. Animals residing in a covered air conditioner can cause several problems. Mice can chew through wires, insulation and other parts, causing damage that may require costly repairs. Debris animals bring into the AC to construct a warm and comfortable bed can impair airflow and ventilation, lowering the efficiency of the appliance and potentially causing it to overheat. In addition, animal droppings can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps discourage creatures, because an uncovered AC offers less shelter from cold weather than a covered unit. That’s better for your cooling system—and leaves you with less mess to throw away and things to repair once the snow melts.

4. A Winter Cover for AC Units Restricts Airflow

Another reason it's better that you don't cover your air conditioner in the winter is because a cover blocks airflow through the unit. Suitable airflow is crucial for the AC system because it facilitates heat exchange and permits the unit to cool efficiently. When airflow is reduced, the system has to work harder to reach the desired temperature, causing increased energy consumption and strain on the components.

In addition, if you turn on 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 shortage of proper airflow could cause the compressor to overheat, resulting in 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 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 tasks you should prioritize to ensure maximum performance and longevity of your AC unit. First, it’s a good idea to inspect your outdoor AC unit regularly and get rid of any debris such as leaves, small branches 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 hinder efficient heat exchange or airflow.

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