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Why You Should Not Fully Cover Your AC Unit

Find out if covering your air conditioner for winter in Springfield, MO is a good idea. Learn expert tips from SS&B Heating & Cooling.

For over 55 years, SS&B Heating & Cooling has been the trusted name in Springfield, Missouri, for honest HVAC service. Since 1969, we’ve helped thousands of local families stay warm in winter and cool in summer. As the snow starts to fly across the Ozarks, we get one question more than any other: “Should I cover my air conditioner for winter?”

The answer? No – and here’s the full story. This isn’t just our opinion — it’s backed by decades of hands-on experience and what today’s top manufacturers recommend. Let’s walk through everything you need to know to protect your AC (and your wallet) this winter.

What Your AC Unit Really Does in Winter

Your outdoor condenser rests during the cold months. Central air systems share the same blower and ducts as your furnace, but the AC coil outside doesn’t run once temperatures fall below 60°F.

That’s why it doesn’t need a heavy cover—it’s built to handle Missouri’s weather. The casing, fan blades, and internal components are designed to resist rain, sleet, and snow. In fact, the biggest threat isn’t cold—it’s lack of airflow if you seal it too tightly.

Problem What Happens Why It Matters in Springfield
Moisture Trapped Inside Covers block airflow. Condensation builds up. Our humid, freezing winters = perfect rust recipe.
Mold & Mildew Growth Dark, damp space under cover = mold party. Can clog coils and reduce efficiency.
Pest Infestation Mice, squirrels, and bugs love warm hideouts. Chewed wires = expensive repairs.
Warranty Issues Many manufacturers warn against full covers. One wrong move = no coverage.
Springtime Disaster Forget to remove it? AC overheats in minutes. Fried compressor = $1,500+ fix.
Pro Tip from SS&B Techs: If you must use something, get a breathable, top-only mesh cover from a local hardware store.
It blocks heavy snow but lets air flow. Never use plastic tarps or garbage bags.

The Right Way to Protect It

If you want to show your AC some love before winter, here’s how SS&B recommends preparing:

  1. Shut off power at the outdoor disconnect box.
  2. Clean away debris like leaves, grass, and acorns.
  3. Cover only the fan top with a vented mesh shield—keep sides open.
  4. Inspect your furnace filter; airflow matters for winter comfort.
  5. Schedule your annual furnace tune-up so both systems are ready for Missouri’s unpredictable cold snaps.

These simple steps help your system breathe and prevent corrosion or electrical damage during winter downtime.

What About Heat Pumps?

If you have a heat pump, never cover it. Heat pumps run year-round, even in freezing weather, extracting warmth from outdoor air. A cover will block that airflow and make the system work overtime.

If you’re not sure whether you have a standard AC or a heat pump, call SS&B—we’ll help you identify your setup and make sure it’s operating safely for the season.

Quick Winter Tips from SS&B

  • Keep snow and ice at least 18 inches away from your outdoor unit.
  • Don’t store items like shovels, decorations, or trash bins against it.
  • Inspect once a month for buildup or critters.
  • If you hear unusual noises when the system first kicks on in spring, call us right away—it might be an easy fix before it turns costly.
  • Book your spring AC tune-up early to avoid the rush once warm weather returns.

When to Call SS&B Heating & Cooling

If you notice loud operation, uneven heating, or higher utility bills this season, your HVAC system might be due for maintenance or an upgrade. SS&B Heating & Cooling repairs most makes and models of furnaces, heat pumps, and air conditioners.

Our experienced, factory-trained technicians handle everything — from furnace tune-ups and AC repairs to high-efficiency Trane and RunTru installations.

At SS&B, our technicians are non-commissioned, so you can trust that we’ll never try to sell you something you don’t need. You get honest advice, reliable service, and lasting comfort.

We proudly serve Springfield, Nixa, Ozark, Republic, Rogersville, and Willard, helping homeowners save energy and enjoy dependable comfort through every Missouri season.

Bottom Line: Cover Less. Care More.

A little winter prep goes a long way. Your air conditioner doesn’t need to be wrapped up tight — just kept clear and clean. Let Missouri’s weather do its thing, and let SS&B Heating & Cooling handle the maintenance that keeps your HVAC system running strong.

SS&B Means Comfort to Me — trusted HVAC care for Springfield since 1969.

Join the SS&B Comfort Club

Enjoy peace of mind with our Comfort Club Maintenance Plan. Members receive seasonal tune-ups, priority scheduling, and exclusive discounts that help prevent costly repairs and keep your HVAC system running efficiently all year long.

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Categories:
Air Conditioners,Multi Zone Ductless,Single Zone Ductless,Tips