As the scorching summer heat starts to fade and the relief of fall starts to settle in, residents of Temple/Belton 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 conditioning unit for the winter.

While it may seem like a great idea, the fact is there are multiple 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 Bell Air Conditioning Inc 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. Your AC Unit Isn’t Damaged by Snow

Outside AC units are designed to withstand harsh weather conditions like snow in the winter. These systems 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 crafted to protect the internal elements from moisture and debris.

2. Covered AC Systems may Encourage Mold Growth

One of the reasons you should avoid covering your air conditioner in the cold months is because doing so can trap moisture—which is the opposite of what you want in your outdoor unit. That’s because trapping moisture inside the unit generates the perfect conditions for mold and mildew to flourish.

Mold and mildew not only have an unpleasant smell, but they can also create health risks, especially for household residents with respiratory issues or allergies. Also, the excess 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 cleared of debris, allowing for efficient airflow and preventing moisture buildup.

3. A Covered Air Conditioner Can Attract Animals

You and your family 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 wintry months. For many critters, a covered air conditioner is an ideal winter refuge.

Birds, mice, chipmunks and even rats commonly make winter dens inside covered air conditioners. Animals dwelling in a covered air conditioner can cause numerous problems. Rats can chew through wires, insulation and other components, causing damage that may require expensive repairs. Debris animals bring into the AC to create a warm and comfortable place to get out of the cold weather can obstruct airflow and ventilation, reducing the efficiency of the unit 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 offers less shelter from the elements than a covered unit. That’s better for your AC—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 limits airflow through the unit. Proper airflow is vital for the AC system because it helps with heat exchange and allows the unit to cool effectively. When airflow is reduced, 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 knowing 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, resulting in its failure or damage.  That’s why it is essential to ensure the outdoor unit is always cleared of any obstructions and is not covered to maintain optimal airflow.

5. AC Maintenance Works Better Than Covering Your Air Conditioner

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

There are several key maintenance tasks you should prioritize to ensure the best possible performance and longevity of your AC unit. First, it’s smart to examine your outdoor AC unit regularly and remove any debris such as leaves, small branches and dirt to promote 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 efficient heat exchange or airflow.

Routine air conditioning maintenance not only boosts efficiency, but it also helps extend the unit’s life span, lowers energy consumption and protects against costly repairs. Rather than using a cover, putting time and effort into routine air conditioning maintenance is a proactive approach that can greatly benefit your entire HVAC system in the long run.