Preparing Your HVAC System for Austin’s Late Summer Storms

Late summer in Austin, TX, means two things: lingering triple-digit heat and sudden, powerful storms. These storms can roll in fast, bringing heavy rain, lightning, high winds, and power surges that put your home and your HVAC system at risk.

Your air conditioner works hard to keep you cool in Austin’s summer heat, so protecting it from storm damage should be a top priority. Here’s how to prepare your HVAC system for Austin’s late summer storms and avoid costly repairs.

Protect Against Power Surges

Lightning strikes and power fluctuations are common during Austin thunderstorms. A sudden surge can fry your AC’s compressor or control board, leading to expensive repairs.

• Install a surge protector: Whole-home surge protection is the best defense, but you can also install surge protection directly on your HVAC unit.
  
• Turn off your system before the storm: If you know a severe storm is coming, shut down your HVAC at the thermostat and breaker to prevent damage.
  

Clear Debris Around Your Outdoor Unit

High winds in Austin storms can send branches, leaves, and loose items flying. If they hit your outdoor condenser unit, they can block airflow or cause physical damage.

• Trim nearby trees and shrubs at least 2–3 feet around the unit.
  
• Remove patio furniture, toys, or garden tools from the yard before a storm.
  

Check and Secure Your Outdoor Unit

Flooding and wind can shift or damage your AC unit. Before storms hit:

• Make sure your condenser is sitting level and secured to a concrete pad.
  
• Consider installing a protective cover (but only after the system is off – never run your AC with a cover on).
  
• If your area is prone to flooding, talk to an HVAC technician about elevating your unit.
  

Keep Your System Maintained

A well-maintained HVAC system is more resilient against Austin’s unpredictable weather. Before storm season ramps up:

• Schedule an HVAC maintenance check to make sure your system is clean, efficient, and ready.
  
• Replace your air filters to keep airflow strong even during humid conditions.
  
• Ask your technician about storm-readiness tips specific to your home.
  

After the Storm: Inspect Before You Restart

Once the skies clear, don’t just flip your system back on. First:

• Check for visible damage around your outdoor unit.
  
• Look for pooling water or unusual noises.
  
• If you suspect damage, call a trusted Austin HVAC professional before restarting your AC.

Frequently Asked Questions About HVAC and Austin Storms

1. Can lightning really damage my air conditioner?
Yes. Power surges from lightning strikes can damage critical parts of your HVAC system, like the compressor and circuit boards. That’s why surge protection is highly recommended for Austin homeowners.

2. Should I cover my AC unit during a storm?
If high winds or hail are expected, you can place a breathable, protective cover over your outdoor condenser after shutting the system off. Never run your air conditioner with a cover on, as it blocks airflow and can cause serious damage.

3. How do I know if my HVAC system was damaged after a storm?
Signs of storm damage include strange noises, reduced cooling, water pooling around your unit, or your system not turning on at all. If you notice any of these, call an HVAC professional before using your AC again.

4. What’s the best way to prevent storm damage to my AC?
Regular HVAC maintenance, trimming trees and shrubs, installing surge protection, and securing your outdoor unit are the best defenses against Austin’s late summer storms.

5. Who should I call if my HVAC system stops working after a storm in Austin, TX?
If your air conditioner won’t turn back on or you suspect damage, contact a trusted Austin HVAC company like McCullough Heating & Air Conditioning for fast, reliable service.

Stay Comfortable, Stay Safe in Austin’s Late Summer Storms

Protecting your HVAC system is about more than comfort – it’s about preventing expensive breakdowns and keeping your family safe. Austin weather may be unpredictable, but with the right precautions, your AC can power through the late summer storms.

At McCullough Heating & Air Conditioning, we’ve been helping Austin homeowners keep their HVAC systems safe and efficient for over 45 years. If you want peace of mind before storm season, schedule a maintenance check today.

Call us now or book online to get your system storm-ready!