As the scorching summer sun starts to fade and the relief of fall starts to settle in, residents of Auburn 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 outdoor AC for the winter.

While it may seem like a great idea, the truth is there are several reasons why you shouldn’t cover your AC unit in the winter. Along with not being necessary, covering your outdoor air conditioning equipment can actually cause problems.

Here, the specialists at Forster Heating 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 built to withstand harsh weather conditions like snow in the wintertime. These machines are built with sturdy 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 designed to protect the internal components from moisture and debris.

2. Covering AC Systems can Encourage Mold

One of the reasons you shouldn’t cover your outdoor air conditioning equipment in the wintertime is because doing so can trap moisture—which is definitely not what you want in your outdoor unit. That’s because trapping moisture inside the unit creates the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have an unpleasant aroma, but they can also present health risks, especially for individuals with respiratory issues or allergies. Additionally, the unwanted 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 clear of debris, allowing for efficient airflow and preventing moisture buildup.

3. Covered AC Systems Can Attract Animals

People aren’t the only ones who get ready for winter. Animals that live around your home are also hunting for a warm, cozy place to hide out for the cold months. For many creatures, a covered air conditioner is an ideal winter dwelling.

Birds, mice, chipmunks and even rats often make homes inside covered air conditioners. Animals dwelling 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 place to get out of the cold weather can impair airflow and ventilation, decreasing the efficiency of the unit and potentially causing it to overheat. In addition, animal droppings can result in unsanitary conditions and potent odors.

Leaving your air conditioner uncovered helps dissuade animals, because an uncovered AC offers less shelter from cold weather than a covered unit. That’s better for your air conditioner—and leaves you with less mess to pick up and things to repair in the spring.

4. A Winter Cover for AC Units Restricts Airflow

Another reason you shouldn’t cover your air conditioning equipment in the winter is because a cover limits airflow through the unit. Suitable airflow is crucial for the AC system because it helps with heat exchange and permits the unit to cool effectively. When airflow is restricted, the system has to work harder to maintain the desired temperature, leading to greater energy consumption and strain on the components.

In addition, if you run your AC without realizing that the outdoor unit is covered or because you simply forgot, it could result in a range of problems. One issue is that the shortage of proper airflow could cause the compressor to overheat, leading to its failure or damage.  That’s why it is necessary to ensure the outdoor unit has no blockages and is not covered to maintain maximum airflow.

5. AC Maintenance Offers More Benefits 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 outdoor AC unit.

There are numerous key maintenance activities you should prioritize to ensure optimal operation and longevity of your AC unit. First, it’s smart to examine your outdoor AC unit regularly and pull out any debris such as leaves, small branches and dirt to allow 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 impede effective heat exchange or airflow.

Routine air conditioning maintenance not only boosts efficiency, but it also helps extend the unit’s life span, decreases 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.