As the scorching summer sunshine starts to fade and the cooler temperatures of fall starts to settle in, residents of Newark start preparing their homes and yards for the the upcoming cold weather. 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 multiple reasons why you shouldn’t cover your AC unit in the winter. In addition to not being needed, covering your outdoor air conditioning equipment can actually cause problems.

Here, the professionals at Luikart Heating & Cooling 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. These units are built with solid materials and hardware 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 parts from moisture and debris.

2. Covering AC Systems can Encourage Mold

One of the reasons you should not cover your AC unit in the cold months is because doing so can trap moisture—which is not at all 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 odor, but they can also pose health risks, especially for individuals with respiratory issues or allergies. Plus, the trapped moisture can corrode the internal components of the AC unit.

As an alternative to covering the unit, instead provide 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 searching for a warm, cozy place to hide out for the winter months. For many creatures, a covered air conditioner is an awesome winter home.

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

Leaving your air conditioner uncovered helps discourage creatures, because an uncovered AC gives them less shelter from chilly temperatures than a covered unit. That’s better for your cooling system—and leaves you with less mess to clean up and things to repair when winter is over.

4. A Winter Cover for AC Units Restricts Airflow

Another reason not to cover your air conditioning equipment in the winter is because a cover limits airflow through the unit. Proper airflow is essential for the AC system because it assists heat exchange and enables the unit to cool properly. When airflow is restricted, 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 air conditioning without realizing that the outside unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the absence of appropriate airflow could cause the compressor to overheat, leading to 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 Offers More Benefits Than Covering Your Air Conditioner

The bottom line is, it’s a lot more effective to do a little maintenance for your air conditioning unit than to cover your outdoor AC unit.

There are several key maintenance activities you should prioritize to ensure the best possible operation and longevity of your AC unit. First, it’s a good idea to look at your outdoor AC unit regularly and remove any debris such as leaves, twigs and dirt to maintain proper airflow. Second, examine and clean the coils, fins and filters to make sure you don’t see any dirt and dust buildup that would prevent 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 protects against costly repairs. Rather than using a cover, investing time and effort into routine air conditioning maintenance is a proactive strategy that can greatly benefit your entire HVAC system in the long run.