Summer Storm Preparedness: Protecting Your HVAC System During Iowa's Thunderstorm Season

Summer storms in Iowa can be intense, bringing lightning, wind, and heavy rain that put your HVAC system at risk. How can you protect your investment before the clouds roll in? Let’s walk through the essential steps to stormproof your heating and cooling system so you stay comfortable no matter what the weather brings.

Why is surge protection so important for your HVAC system?

Because one lightning strike can take out your entire A/C unit.

Power surges caused by lightning or downed power lines can fry your HVAC’s electrical components in an instant. Installing a dedicated surge protector is a simple, affordable way to protect your system. Think of it like an insurance policy for your most essential comfort equipment—especially during Iowa’s unpredictable summer storm season.

How can you protect your outdoor A/C unit from storm damage?

By clearing the area around it and securing nearby objects.

Strong winds can turn outdoor furniture, tools, and even branches into dangerous projectiles. Before a storm, make sure to secure or store anything that could blow into your condenser unit. Trim back trees and bushes, and if conditions are especially severe, cover your unit with a breathable tarp or cover—but remember to remove it once the storm has passed to prevent moisture build-up.

Should you turn off your HVAC system during a storm?

Yes, if severe weather is expected, shutting it off is the safest move.

Turning your system off at the thermostat and the circuit breaker can help prevent damage from voltage fluctuations or power outages. Once the storm is over and power is stable, you can safely turn everything back on. It’s a small step that could prevent a major repair.

What should you do if you see flooding near your A/C unit?

Take action quickly—and don’t turn it on.

Pooling water around the base of your condenser unit can lead to rust, electrical failure, or long-term system damage. If water rises near or above the base of the unit, call Obsidian Heating & Cooling before restarting it. We’ll inspect and ensure it’s safe to use again. For ongoing prevention, improve drainage or add a gravel pad around the unit.

How do you know if your HVAC system was damaged in a storm?

Watch for unusual signs—and schedule a post-storm checkup.

After a storm, be alert for issues like weak airflow, strange noises, or a thermostat that’s not responding. These could all be signs of hidden storm damage. A quick inspection by our team can catch problems early before they lead to a full breakdown.

What can you do to stay cool if the power goes out?

Keep the heat out and conserve the cool air inside.

If your A/C shuts down during a power outage, close your curtains to block sunlight, avoid using heat-producing appliances, and consider battery-powered fans for temporary relief. Head to the basement if you have one—it’s usually the coolest spot in the house.

Why trust Obsidian Heating & Cooling during Iowa’s storm season?

Because when things get stormy, we don’t disappear—we show up.

Obsidian Heating & Cooling proudly serves Ankeny and surrounding communities with expert HVAC support before, during, and after the storm. From installing surge protection to handling emergency repairs, we’re your reliable partner for staying comfortable and safe.

Don’t wait for the sirens—schedule a system check today and get storm-ready with Obsidian.