Summer storms can roll in fast, and when they do, your HVAC system is one of the first things at risk. Between heavy rain, lightning and sudden power cuts, these weather shifts can leave your cooling system fried or flooded. At Air Nerds, in Mineral, VA, we help homeowners get ahead of storm damage with smart upgrades and timely AC maintenance.
Unplugging and Turning Off Your System Before a Storm
When a summer storm is coming and you get phone weather alerts, one of the smartest things you can do is turn your HVAC system off. It sounds simple, but it makes a big difference when lightning and power surges are part of the forecast. If your air conditioner or heat pump is running and the power suddenly cuts out or surges, the internal parts can get fried.
Surge damage isn’t always visible at first, but at some point, you may notice the AC isn’t cooling as well or at all. During a storm, the circuit board or compressor could have taken a hit. Before a storm, if you turn off your system at the thermostat, you give it a better chance of avoiding damage.
Installing a Surge Protector For Your HVAC System
You may already have surge protectors for your TV or computer, but your HVAC setup should have protection too. A whole-house surge protector can be wired into your electrical panel to block voltage spikes from affecting major appliances like your air conditioner. Summer storms are full of surprises, and even one lightning strike near your home can send a rush of power through your lines.
Without protection, that extra electricity can fry the control board inside your outdoor unit, leading to a repair bill. There are also individual surge protectors for HVAC systems that can be added by a technician for extra coverage.
Checking for Drainage Problems Around the Outdoor Unit
If your AC’s outdoor unit is in a low spot in the yard or near clogged gutters, hard rain can flood the area and soak the components. The fan motor, wiring and circuit boards aren’t designed to handle excess water. After a heavy storm, you might notice your AC unit buzzing but not turning on, or you could smell something burnt. That’s often from trapped water shorting things out. Keeping the area around your system clear of leaves, mulch, and debris helps it drain properly.
Covering the Unit Without Smothering It
You might be tempted to cover your air conditioner with a tarp or plastic sheet when dark clouds roll in, but that can do more harm than good. Your outdoor unit needs air to breathe even when it’s off. Covering it too tightly can trap moisture underneath, leading to rust or mold. But that doesn’t mean you can’t give it some extra protection.
There are special covers made for AC units that sit loosely on top to shield them from flying debris without sealing everything in. If you use a cover, make sure you remove it before turning the system back on, so airflow isn’t blocked.
After the Storm: What to Look for Before Restarting
Once the rain has stopped and the lightning is gone, it’s tempting to flip the AC back on immediately, especially if your space is heating up. But it’s better to check the system first. Look around the outdoor unit for fallen branches, dents or any wires that seem out of place. If water has pooled around the base, give it time to dry before restarting the system.
Why Professional Maintenance Helps Before Storm Season
Professional maintenance can ensure all AC parts are working correctly to prevent issues. One of our technicians can spot problems that could leave your system more vulnerable in stormy weather, like loose wiring, worn-out capacitors or signs of rust in the cabinet. They can also check if your surge protection is up to par and ensure your drain lines will flow freely.
Protect Your HVAC System Now
Taking a few simple steps now can save you from expensive repairs. We also offer AC tune-ups, ductwork inspections, and indoor air quality upgrades. Reach out to the heating and cooling services pros at Air Nerds to protect your HVAC system from summer storms and power surges.
