As the cooler months arrive in Nashville, TN, many homeowners start preparing their homes for fall and winter by sealing windows, insulating pipes, and performing other seasonal maintenance tasks, but one question that often comes up this time of year at MJ Frick Co. is: “Should you cover your AC unit during fall and winter?” While it might seem like a good way to protect your investment, the short answer from the professionals at MJ Frick Co. is no; you should not cover your AC unit. In fact, doing so can lead to more harm than good.
Why You Should Not Cover Your AC Unit
Air conditioning units are specifically designed to be outdoors year-round. The components of a modern AC system, including the condenser and compressor, are made to withstand rain, snow, wind, and even ice. Covering your unit can create more problems than it solves. Here is why:
Moisture Can Get Trapped
One of the most important reasons to avoid covering your AC unit is that a cover can trap moisture inside. Even with the most tightly sealed cover, condensation can still build up under the surface. This trapped moisture creates a perfect environment for rust, mold, and mildew, potentially damaging internal components and shortening the lifespan of your unit.
Covers Invite Critters
Covers may seem like protection, but they often turn your AC unit into an attractive winter home for rodents, insects, and other small animals. Once inside, these critters can chew through wires, build nests, or block airflow – all of which can lead to costly repairs when spring arrives.
Airflow Is Restricted
Even during the winter, your AC unit needs to “breathe.” Covering the unit can block natural airflow and create stagnation inside the system. In some cases, this can lead to foul odors, corrosion, or mechanical issues.
AC Units Are Built for Weather
If you have ever taken a closer look at your outdoor unit, you have likely noticed that it is made of highly durable materials like galvanized steel and aluminum fins. These materials are built to resist corrosion and damage from outdoor elements. The electrical components and wiring are sealed and protected from rain and snow. As long as you are keeping up with AC maintenance, there is no need to worry about weather-related damage in fall or winter.
What You Should Do Instead
Instead of covering your unit, there are a few low-effort things you can do to protect your AC during the offseason:
- Clear Debris: Regularly remove leaves, branches, or dirt that may accumulate around the base of your unit.
- Check for Obstructions: Make sure there is at least two feet of clearance around your AC for airflow and easy access.
- Schedule Professional Maintenance: This is a great time to schedule an AC maintenance check-up with the team at MJ Frick Co. We can inspect your unit for wear and tear, clean internal parts, and ensure it is in good shape for the next cooling season.
Should You Turn On Your AC in the Winter?
Another question homeowners often ask is, “Should you turn on your AC in the winter?” In most cases, the answer is no. If temperatures are below 60°F, your system may not operate properly or could even become damaged. However, many HVAC systems now include heat pump technology, which can provide both heating and cooling. If you are unsure about how to use your system properly in colder months, our technicians are here to help you navigate the settings safely and efficiently.
Trust MJ Frick Co. for Year-Round HVAC Care
At MJ Frick Co., we have been helping homeowners in Nashville, TN, with their heating and cooling needs for years, including answering questions like “Should you cover your AC unit in the winter?” From AC maintenance to winter prep and everything in between, our experienced HVAC technicians are here to help ensure your comfort and peace of mind. So, should you cover your AC unit in fall and winter? The answer is no. Let your AC unit do what it was built to do: stand up to the elements without interference.
If you are due for seasonal maintenance or have questions about your HVAC system, contact us at MJ Frick Co. today to schedule your service.
