As the scorching summer sunshine starts to fade and the cooler temperatures of fall starts to settle in, residents of Bridgeport 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 outdoor air conditioner for the winter.

While it may seem like a smart idea, the reality is there are many reasons why you shouldn’t cover your AC unit in the winter. On top of not being needed, covering your outdoor air conditioning equipment can even cause problems.

Here, the professionals at Custom Air Systems 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. Snow won’t Hurt Your AC

Exterior AC units are supposed to withstand harsh weather conditions like snow in the winter season. These systems are built with sturdy 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 designed 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 AC unit 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 trapping moisture inside the unit creates the perfect conditions for mold and mildew to flourish.

Mold and mildew not only have a bad smell, but they can also pose health risks, especially for household residents with respiratory issues or allergies. Also, the excess 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 cleared of debris, allowing for efficient airflow and preventing moisture buildup.

3. A Covered Air Conditioner Can Host Animals

People aren’t the only ones who prepare 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 critters, a covered air conditioner is an ideal winter home.

Birds, mice, chipmunks and even rats commonly make nests inside covered air conditioners. Animals dwelling in a covered AC unit can cause many problems. Mice 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 nest can obstruct airflow and ventilation, reducing the efficiency of the appliance and potentially causing it to overheat. Moreover, animal droppings can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps deter animals, because an uncovered AC provides less shelter from chilly temperatures than a covered unit. That’s better for your air conditioner—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 conditioning equipment in the winter is because a cover blocks airflow through the unit. Proper airflow is essential for the AC system because it assists heat exchange and allows the unit to cool efficiently. When airflow is restricted, the system has to work harder to reach the desired temperature, leading to increased energy consumption and strain on the components.

In addition, if you run your AC without knowing that the exterior unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the lack of appropriate airflow could cause the compressor to overheat, leading to its failure or damage.  That’s why it is essential to ensure the outdoor unit is free from barriers and is not covered to maintain optimal airflow.

5. AC Maintenance Works Better Than Covering Your Air Conditioner

The bottom line is, it’s lots more effective to do a little maintenance for your cooling system than to cover your outside AC unit.

There are numerous key maintenance activities you should prioritize to ensure optimal performance and longevity of your AC unit. First, it’s a good idea to inspect your outdoor AC unit regularly and clear any debris such as leaves, twigs and dirt to allow proper airflow. Second, examine and clean the coils, fins and filters to make sure they are free from dirt and dust buildup that would prevent successful 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 protects against costly repairs. Rather than using a cover, investing time and effort into routine air conditioning maintenance is a proactive strategy that can substantially benefit your entire HVAC system in the long run.