How do you protect an air conditioner in the winter? The answer is simple: Winterize your air conditioner properly.
“Winterizing” might sound like a technical word, but it’s a relatively straightforward process: Clean the AC unit, add insulation, cover the unit during the winter months, and inspect it regularly.
In this guide, we’ll walk you through all of the expert-approved steps for protecting your outdoor AC unit in cold weather, from efficient cleaning to proper covering to proven pro tips that help you avoid common mistakes.
Why Winterizing Your Air Conditioner Matters
Your AC unit is built to withstand rain and snow, but winter weather still poses risks, especially from debris, ice buildup, and moisture infiltration. Learning how to protect an outdoor AC unit is one of the easiest ways to extend its life and avoid unexpected breakdowns when spring arrives.
Without following proper winterization steps, you could pay more in the long run. According to the US Department of Energy, AC units consume about 12% of all electricity in US households. Without following proper winterization steps, you could pay more in the long run. Regular winter maintenance can prevent ice buildup and improve system efficiency in the spring.
How Do You Protect an Air Conditioner in the Winter? 5 Tips to Follow
Our five tips to follow are part of any routine HVAC maintenance program:
1. Clean the AC Unit
Before winter sets in, remove all debris from and around your AC unit.
- Clear away leaves, twigs, grass clippings, and dirt.
- Rinse the exterior with a garden hose (but avoid power washing, which can damage fins).
- Wipe off bird droppings or sap to prevent long-term corrosion.
Pro Tip: While these steps are essential, don’t stop after the first cleaning. Continue removing debris periodically throughout the winter, especially after storms.
2. Cut the Power
Simply switching your thermostat to “heat” isn’t enough. For complete winter protection, locate the AC’s outdoor electrical circuit (usually in a small metal or plastic box nearby), then lift the cover and flip the switch to cut power to the unit.
This prevents the AC from accidentally turning on during brief warm spells, which could draw in snow or ice and damage internal parts.
3. Add Pipe Insulation
One often-overlooked step in how to protect an outdoor AC unit is insulating its pipes. If you enjoy DIY projects, this is a relatively easy one, and it can prevent a frozen air conditioner.
Our recommendations:
- Use self-adhesive rubber or tubular foam insulation.
- Fit elbows and tees tightly to bends and joints.
- Check insulation regularly through winter to ensure it remains snug.
Proper insulation helps protect pipes from freezing temperatures, reducing the risk of cracks and leaks.
4. Know How to Cover Your Air Conditioner for Winter
While AC units are designed for outdoor weather, covering can protect against seeds, nuts, and debris.
Best Practices for Covering Your Unit
Here are four rules to follow to protect your AC unit through the winter:
- Use a manufacturer-recommended AC cover or a breathable vinyl/plastic cover.
- Avoid old tarps, which can trap moisture and attract pests.
- Leave at least 12 inches of clearance from the ground to allow airflow.
- Secure the cover to prevent wind damage.
Following these steps helps to ensure your AC unit is ready in the spring and summer months.
5. Make Regular Inspections
Even after you cover your air conditioner for winter, it’s important to check it periodically. What to look for:
- Inspect the cover to ensure it’s secure.
- Remove leaves, pine cones, and snow buildup from around the base.
- Brush away any ice or puddles forming near the unit.
Regular inspections ensure your AC is in top shape when spring arrives.
Final Thoughts: Protect Your AC and Your Budget
Knowing how to protect an air conditioner in the winter is key to extending its life, avoiding unnecessary repairs, and maintaining energy efficiency.
To recap:
- Winterize your air conditioner by cleaning, cutting power, insulating, covering, and inspecting.
- Use proper materials (no makeshift tarps) to cover your AC unit for winter.
- Stay consistent. Small steps now can prevent expensive fixes later!
And remember, protecting your AC is just one part of protecting your budget. With a home warranty from 2-10 Home Buyers Warranty, you can protect your budget against covered breakdowns to covered systems and appliances, including your AC unit.
