As the hot summer sun starts to fade and the cooler temperatures of fall starts to settle in, residents of Huntingburg start preparing their homes and yards for the winter. 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 great idea, the truth is there are a number of reasons why you shouldn’t cover your AC unit in the winter. On top of not being necessary, covering your outdoor air conditioning equipment can actually cause problems.

Here, the professionals at Dearing's Service & Solutions 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 can Handle Snow

Outdoor AC units are built to withstand harsh weather conditions like snow in the winter. These units are built with durable materials and parts 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 parts from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

One of the reasons you should not cover 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 sealing moisture 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 individuals with respiratory issues or allergies. Additionally, the excess moisture can corrode the internal components of the AC unit.

Instead of covering the unit, instead make sure the unit has proper drainage and keep the area around the unit cleared of debris, allowing for efficient airflow and preventing moisture buildup.

3. Your Covered Air Conditioning Unit Can Host 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 live for the wintry months. For many creatures, a covered air conditioner is an ideal winter refuge.

Birds, mice, chipmunks and even rats frequently make nests inside covered air conditioners. Animals living in a covered AC unit can cause numerous problems. Mice can chew through wires, insulation and other connections, causing damage that may require expensive repairs. Debris animals bring into the AC to construct a warm and comfortable place to get out of the cold weather can block airflow and ventilation, limiting the efficiency of the appliance and potentially causing it to overheat. Additionally, animal droppings can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps discourage animals, because an uncovered AC offers less shelter from chilly temperatures than a covered unit. That’s better for your AC—and leaves you with less mess to clean 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 air conditioning equipment in the winter is because a cover restricts airflow through the unit. Proper airflow is essential for the AC system because it facilitates heat exchange and enables the unit to cool effectively. When airflow is restricted, the system has to work harder to achieve the desired temperature, causing additional energy consumption and strain on the components.

In addition, if you turn on your air conditioning without knowing 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 appropriate airflow could cause the compressor to overheat, resulting in its failure or damage.  That’s why it is crucial to ensure the outdoor unit has no 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 lot more effective to do a little maintenance for your cooling system than to cover your exterior AC unit.

There are several key maintenance tasks you should prioritize to ensure the best possible function and longevity of your AC unit. First, it’s smart to inspect your outdoor AC unit regularly and remove any debris such as leaves, sticks and dirt to promote proper airflow. Second, examine and clean the coils, fins and filters to make sure there isn't any dirt and dust buildup that would impede effective heat exchange or airflow.

Regular air conditioning maintenance not only improves 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 significantly benefit your entire HVAC system in the long run.