As the hot summer heat starts to fade and the cooler temperatures of fall starts to settle in, residents of Goshen 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 great idea, in reality there are several reasons why you shouldn’t cover your AC unit in the winter. In addition to not being necessary, covering your outdoor air conditioning equipment can actually cause problems.

Here, the specialists at Just Right Heating and Cooling share five reasons why covering your AC doesn’t need to be on your fall to-do list and what you should do instead.

1. Your AC can Handle Snow

Outside AC units are built to withstand harsh weather conditions like snow in the winter season. 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 elements from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

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 trapping moisture inside the unit generates the perfect conditions for mold and mildew to spread.

Mold and mildew not only have an unpleasant odor, but they can also create health risks, especially for individuals with respiratory issues or allergies. Plus, 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 clean of debris, allowing for efficient airflow and preventing moisture buildup.

3. Covered AC Systems Can Host Animals

You and your family aren’t the only ones who make plans for winter. Animals that live around your home are also hunting for a warm, cozy place to live for the cold months. For many animals, a covered air conditioner is an awesome winter home.

Birds, mice, chipmunks and even rats commonly make winter dens inside covered air conditioners. Animals residing in a covered air conditioning unit can cause numerous problems. Rodents can chew through wires, insulation and other connections, 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, lowering the efficiency of the appliance and potentially causing it to overheat. Moreover, animal excrement can result in unsanitary conditions and foul odors.

Leaving your air conditioner uncovered helps discourage creatures, because an uncovered AC provides less shelter from cold weather than a covered unit. That’s better for your cooling system—and leaves you with less mess to clean up 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 blocks airflow through the unit. Suitable airflow is essential for the AC system because it helps with heat exchange and allows the unit to cool properly. When airflow is restricted, the system has to work harder to achieve the desired temperature, causing additional energy consumption and strain on the components.

In addition, if you run your AC without noticing 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 correct airflow could cause the compressor to overheat, resulting in its failure or damage.  That’s why it is necessary to ensure the outdoor unit has no obstructions and is not covered to maintain optimal airflow.

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

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

There are numerous 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 get rid of any debris such as leaves, sticks and dirt to promote 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 effective heat exchange or airflow.

Regular 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, committing time and effort into routine air conditioning maintenance is a proactive approach that can substantially benefit your entire HVAC system in the long run.