As the sweltering summer sun starts to fade and the refreshingly cool weather of fall starts to settle in, residents of Thedford start preparing their homes and yards for the winter. 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 good idea, in reality 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 sometimes cause problems.

Here, the experts at Taylor's Heating & 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

Exterior AC units are designed to withstand harsh weather conditions like snow in the winter. These machines are built with durable materials and parts that can handle the outdoor elements without damage. The coils and fins of the unit are engineered to resist corrosion, and the housing is manufactured to protect the internal components from moisture and debris.

2. Covering AC Systems can Encourage Mold

One of the reasons you should not cover your AC unit 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 produces the perfect conditions for mold and mildew to thrive.

Mold and mildew not only have an unpleasant aroma, but they can also pose health risks, especially for people 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 clean of debris, allowing for efficient airflow and preventing moisture buildup.

3. Your Covered Air Conditioning Unit Can Host Animals

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

Birds, mice, chipmunks and even rats frequently make homes inside covered air conditioners. Animals living in a covered AC unit can cause several 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 bed can block airflow and ventilation, limiting the efficiency of the appliance and potentially causing it to overheat. Moreover, animal droppings can result in unsanitary conditions and bad odors.

Leaving your air conditioner uncovered helps discourage wildlife, because an uncovered AC gives them 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 when winter is over.

4. An AC Cover Restricts Airflow

Another reason not to cover your air conditioner in the winter is because a cover blocks airflow through the unit. Suitable airflow is crucial for the AC system because it helps with heat exchange and allows the unit to cool efficiently. When airflow is severely limited, the system has to work harder to achieve the desired temperature, leading to greater energy consumption and strain on the components.

In addition, if you turn on your air conditioner 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 lack of appropriate airflow could cause the compressor to overheat, resulting in its failure or damage.  That’s why it is crucial to ensure the outdoor unit has no blockages and is not covered to maintain the best possible 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 several 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 remove any debris such as leaves, sticks 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 hinder efficient heat exchange or airflow.

Regular air conditioning maintenance not only improves efficiency, but it also helps extend the unit’s life span, decreases energy consumption and prevents costly repairs. Rather than using a cover, committing time and effort into routine air conditioning maintenance is a proactive strategy that can significantly benefit your entire HVAC system in the long run.