As the hot summer sun starts to fade and the relief of fall starts to settle in, residents of Macon start preparing their homes and yards for the winter. For many, that leads to the question of whether they need to cover their exterior air conditioner for the winter.

While it may seem like a good idea, in reality there are multiple reasons why you shouldn’t cover your AC unit in the winter. Along with not being necessary, covering your outdoor air conditioning equipment can actually cause problems.

Here, the specialists at Air Temperature Control 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

Outside AC units are designed to withstand harsh weather conditions like snow in the winter season. These systems are built with durable materials and components that can handle the outdoor elements without damage. The coils and fins of the unit are constructed to resist corrosion, and the housing is designed 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 wintertime 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 generates the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have an unpleasant odor, but they can also present health risks, especially for individuals with respiratory issues or allergies. Additionally, the trapped 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 clean of debris, allowing for efficient airflow and preventing moisture buildup.

3. A Covered Air Conditioner Can Attract Animals

Human beings aren’t the only ones who make plans for winter. Animals that live around your home are also searching for a warm, cozy place to hide out for the cold months. For many creatures, a covered air conditioner is the perfect winter dwelling.

Birds, mice, chipmunks and even rats often make winter dens inside covered air conditioners. Animals living in a covered AC 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 create a warm and comfortable home can block airflow and ventilation, reducing the efficiency of the AC and potentially causing it to overheat. Additionally, animal droppings can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps deter creatures, because an uncovered AC gives them less shelter from the elements than a covered unit. That’s better for your cooling system—and leaves you with less mess to throw away and things to repair in the spring.

4. An AC Cover Restricts Airflow

Another reason you shouldn’t cover your air conditioner in the winter is because a cover limits airflow through the unit. Suitable airflow is essential for the AC system because it assists heat exchange and allows the unit to cool properly. When airflow is constrained, the system has to work harder to maintain the desired temperature, leading to increased energy consumption and strain on the components.

In addition, if you use your air conditioner without realizing that the outdoor 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, causing its failure or damage.  That’s why it is essential to ensure the outdoor unit is free from 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 much more effective to do a little maintenance for your cooling system than to cover your outdoor AC unit.

There are a number of key maintenance activities you should prioritize to ensure optimal performance and longevity of your AC unit. First, it’s smart to examine your outdoor AC unit regularly and clear any debris such as leaves, twigs and dirt to maintain proper airflow. Second, inspect and clean the coils, fins and filters to make sure there isn’t any dirt and dust buildup that would impede 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, committing time and effort into routine air conditioning maintenance is a proactive strategy that can substantially benefit your entire HVAC system in the long run.