As the scorching summer sun starts to fade and the refreshingly cool weather of fall starts to settle in, residents of Haines City 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 exterior air conditioner for the winter.

While it may seem like a great idea, in reality there are a number of 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 specialists at Air Commander's Heating & Air Conditioning Co. share five reasons why covering your AC 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. These systems are built with durable 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 crafted 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 air conditioner in the cold months is because doing so can trap moisture—which is the opposite of 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 thrive.

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

As an alternative to covering the unit, instead ensure proper drainage and keep the area around the unit free of debris, allowing for efficient airflow and preventing moisture buildup.

3. A Covered Air Conditioner Can Attract Animals

Humans aren’t the only ones who make plans for winter. Animals that live around your home are also looking for a warm, cozy place to hide out for the cold months. For many critters, a covered air conditioner is an awesome winter refuge.

Birds, mice, chipmunks and even rats frequently make winter dens inside covered air conditioners. Animals dwelling in a covered air conditioning unit can cause numerous problems. Mice can chew through wires, insulation and other parts, causing damage that may require pricey repairs. Debris animals bring into the AC to construct a warm and comfortable bed can obstruct airflow and ventilation, limiting the efficiency of the unit and potentially causing it to overheat. Moreover, animal waste can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps discourage animals, because an uncovered AC provides 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 in the spring.

4. Covering Your Air Conditioner Restricts Airflow

Another reason not to cover your air conditioner in the winter is because a cover blocks airflow through the unit. Proper airflow is crucial for the AC system because it helps with heat exchange and permits the unit to cool properly. 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 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, leading to its failure or damage.  That’s why it is vital to ensure the outdoor unit is free from obstructions and is not covered to maintain the best possible 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 outdoor 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 wise to examine your outdoor AC unit regularly and get rid of any debris such as leaves, sticks and dirt to maintain proper airflow. Second, inspect and clean the coils, fins and filters to make sure you don’t see any dirt and dust buildup that would hinder effective 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.