Our team is growing! View current openings and apply today. Read More

Skip navigation

24-Hour Service

Menu

Air Conditioning

How to Winterize Your Air Conditioner: Dos and Don’ts

Home | Blog | Published on October 13th, 2025

When you think about winter, your air conditioner probably isn’t the first thing that comes to mind. After all, while you’re sipping hot cocoa and bundling up in layers, your cooling system is hibernating until next summer. But here’s the catch: how you treat your A/C during the cold months can make a big difference in how well it performs when the heat returns.

You need to know the right steps to protect your system—including scheduling air conditioner maintenance in West Mifflin, PA before winter sets in. This will save you from costly repairs and ensure smooth operation for years to come.

Do: Clean the Outdoor Unit

Before your air conditioner takes its seasonal nap, make sure it’s clean. Clear away leaves, twigs, dirt, and any other debris that might have collected around the outdoor unit. Left unchecked, these can trap moisture, promote rust, and invite critters looking for winter shelter. A quick cleanup now can save you a bigger headache come spring.

Don’t: Cover It With Plastic

It might be tempting to throw a big plastic tarp over your outdoor unit to “protect” it, but don’t do it! Plastic traps moisture, which can lead to rust, corrosion, and even mold growth. If you want to shield your system from snow and ice, use a breathable, fitted A/C cover made specifically for this purpose—or even a simple piece of plywood across the top to keep heavy snow from falling directly inside.

Do: Shut Off the Power

Most outdoor units have a power switch located under a flip-up lid nearby. Turning this off before winter keeps the system from accidentally running during a surprise warm spell. It also prevents water from entering the unit and freezing if it cycles on unexpectedly.

Don’t: Forget About the Inside

While the outdoor unit is the star of winter prep, don’t neglect the indoor components. Replace your air filter before winter and check your vents for blockages. Even though you’re switching over to heat, your HVAC system still depends on good airflow to keep everything running smoothly.

Do: Schedule Professional Maintenance

The best way to prepare your air conditioner for a long winter break is to have it checked by a pro. A technician can inspect electrical connections, refrigerant levels, and moving parts to ensure the system is ready for both rest and next season’s heavy lifting. Pairing this with a fall heating tune-up is an excellent way to make sure your whole comfort system is ready to handle the season.

Don’t: Ignore Strange Sounds or Issues

If you’ve noticed odd noises, reduced cooling power, or leaks during the summer, don’t assume winter downtime will magically “reset” your system. Unresolved issues tend to worsen with time. Address them now, before your system sits idle, so you’re not faced with a major repair next spring.

Ready for Winter, Ready for Summer

Taking the right steps now ensures your A/C system will be in top shape when the warm weather inevitably circles back around. Treat your air conditioner kindly this season, and it’ll return the favor when you need it most.

Call the friendly staff at Boehmer Heating & Cooling for exceptional customer service! Discuss your air conditioner maintenance in West Mifflin, PA with our team today.

Let Us Help You Save Even More

Find More Promos

90 Years of Satisfied Customers

View All Reviews

Serving the Greater Pittsburgh Area