How to Protect Your AC Unit During a Storm

Key Takeaways: 

• You can protect your AC from a storm by shutting the system off, covering the outdoor unit, securing the area around the condenser, getting regular maintenance and inspecting the system after the storm! 
• For all your AC storm prep, give us a call!

Storm season can be unpredictable, and while you may be used to preparing your home by boarding up windows or checking your emergency kits, one area that often gets overlooked is your HVAC system. Your air conditioning unit, especially the outdoor condenser, is vulnerable during storms. Whether it’s heavy rain, strong winds, lightning, or even hail, a storm can easily cause damage to your AC, leaving you uncomfortable and with a hefty repair bill.

Here’s how to protect your AC unit during a storm and ensure it continues to keep you cool once the skies clear.

1. Shut Off the System

One of the first things you should do when a storm is approaching is turn off your air conditioning system at the thermostat and the breaker. If lightning strikes near your home, it can cause power surges that may damage the electrical components of your AC unit. Turning off the system prevents short circuits and reduces the risk of long-term damage. If you’re dealing with a particularly strong storm or hurricane, it’s a good idea to cut off power to the entire system for added safety.

2. Cover the Outdoor Unit

The outdoor condenser is especially exposed during storms. It can be damaged by flying debris, falling branches, or hail. If you have time before the storm hits, place a specially designed AC cover or even a tarp over the unit. Just make sure the cover is secure but breathable to prevent moisture from getting trapped underneath, which could lead to rust or mold.

It’s important to remember to remove the cover as soon as the storm passes. Running your AC while it’s covered can damage the system and reduce airflow, which is essential for cooling efficiency.

3. Secure the Area Around Your Unit

Before the storm begins, check the area around your outdoor unit for loose items that could become projectiles in high winds. Patio furniture, toys, garden tools, and even small branches should be removed or tied down. Clearing this area reduces the chance of physical damage to the AC unit and improves safety for everyone around your home.

If there are overhanging trees or branches near the unit, consider trimming them back ahead of storm season. Falling limbs are a common source of damage during severe weather.

4. Install a Surge Protector

Your AC unit is a major investment, and like any valuable appliance, it deserves protection. One of the best ways to safeguard it from electrical damage during storms is by installing a surge protector. Whole-house surge protectors can help prevent voltage spikes from damaging not only your AC system but also your other electrical devices and appliances.

Talk to a licensed electrician or your HVAC technician about the best surge protection options for your home.

5. Schedule Regular Maintenance

Preventive maintenance is always your first line of defense. An HVAC professional can check your system for vulnerabilities, loose connections, and worn-out components before storm season starts. Having your system inspected ensures that it’s in the best condition to handle unexpected weather and helps reduce the risk of breakdowns after a storm.

Routine maintenance also gives your technician the chance to recommend additional protective measures tailored to your specific home and climate.

We also recommended enrolling in our Chill Preventative Maintenance Plan! With this plan, you can receive bi-annual tune-ups, priority service and more. Give us a call today or visit our website to enroll! 

6. Inspect the System After the Storm

Once the storm passes, resist the urge to immediately turn the system back on. First, inspect the outdoor unit for any visible signs of damage, such as dents, debris inside the grill, or disconnected wires. If everything looks intact, you can power the system back on. However, if you suspect any damage or if the unit is making unusual sounds, call a professional before using it again.

It’s also a good idea to change your air filter after a storm, especially if your home experienced flooding, dust, or poor air quality during the weather event.

Protecting Your Comfort Year-Round

Storms are a part of life in many regions, but they don’t have to result in expensive HVAC repairs. By taking a few simple steps to protect your AC system before, during, and after a storm, you can save yourself money, extend the life of your unit, and stay comfortable when you need it most.

At The Chill Brothers, we’re here to help you weather any storm. Whether you need maintenance, surge protection installation, or a post-storm inspection, our trusted HVAC professionals are just a call away. Let us help you keep your home safe, cool, and ready for whatever nature throws your way. We service many areas including HVAC services Austin. 

Francis Kaspar

I’m Francis Kaspar, a 35-year-old HVAC technician with over 10 years of experience in the industry. I hold a certification in HVAC technology from Texas State Technical College, where I gained hands-on skills that shaped my career.

Currently, I’m working at The Chill Brothers, specializing in AC installation, repair, and energy-efficient solutions. Outside of work, I enjoy spending time with my wife and two kids.

I’m also passionate about sharing my HVAC knowledge written by articles that provide practical tips and tricks for homeowners.