As the sweltering summer heat starts to fade and the cooler temperatures of fall starts to settle in, residents of Eastland start preparing their homes and yards for the wintertime. For many, that leads to the question of whether they need to cover their outside 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. Along with not being necessary, covering your outdoor air conditioning equipment can sometimes cause problems.

Here, the professionals at J & J Air Conditioning 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

Outdoor AC units are supposed to withstand harsh weather conditions like snow in the wintertime. These machines 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 crafted to protect the internal parts from moisture and debris.

2. Covering Your Air Conditioner Can Cause Mold

One of the reasons you should avoid covering your AC unit in the winter 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 produces the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have an unpleasant smell, but they can also pose health risks, especially for individuals with respiratory issues or allergies. Plus, the excess moisture can corrode the internal components of the AC unit.

Rather than 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. Your Covered Air Conditioning Unit Can Host Animals

Human beings aren’t the only ones who get ready for winter. Animals that live around your home are also searching for a warm, cozy place to crash for the winter months. For many animals, a covered air conditioner is an awesome winter dwelling.

Birds, mice, chipmunks and even rats often make winter dens inside covered air conditioners. Animals residing in a covered AC unit can cause many problems. Rats 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 impair airflow and ventilation, lowering the efficiency of the AC and potentially causing it to overheat. Moreover, animal droppings can result in unsanitary conditions and potent odors.

Leaving your air conditioner uncovered helps discourage animals, because an uncovered AC gives them less shelter from the elements 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. Covering Your Air Conditioner 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 allows the unit to cool effectively. When airflow is constrained, the system has to work harder to reach the desired temperature, resulting in greater energy consumption and strain on the components.

In addition, if you use your air conditioning without knowing 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 appropriate airflow could cause the compressor to overheat, causing its failure or damage.  That’s why it is essential to ensure the outdoor unit has no obstructions and is not covered to maintain maximum airflow.

5. AC Maintenance Is More Effective Than Covering Your Air Conditioner

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

There are several key maintenance activities you should prioritize to ensure maximum operation and longevity of your AC unit. First, it’s a good idea to examine your outdoor AC unit regularly and pull out any debris such as leaves, twigs and dirt to maintain proper airflow. Second, examine and clean the coils, fins and filters to make sure there isn’t any dirt and dust buildup that would hinder effective heat exchange or airflow.

Routine air conditioning maintenance not only improves efficiency, but it also helps extend the unit’s life span, reduces 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 substantially benefit your entire HVAC system in the long run.