Severe weather can roll in fast here in Texas, and after a major storm, your home’s HVAC system might have taken a hit without you even realizing it. Whether you experienced heavy winds, flooding, or power outages, it’s critical to check your system before flipping it back on. Doing so can help you avoid damage, improve safety, and prevent unnecessary repair costs.

Here’s a homeowner friendly guide to inspecting your HVAC system after a storm:

Start with an Visual Inspection of the Outdoor Unit (Condenser)

Storms can blow debris, flood yards, and even knock over equipment. Take a walk outside and check:

  • Debris around or inside the unit: Clear any branches, dirt, or leaves that may have piled up. Blocked airflow can lead to overheating or system failure.
  • Visible damage: Look for dents, disconnected wires, or panels that may have come loose.
  • Flooding or standing water: If your condenser is sitting in water, do not turn your system on. Call a professional immediately.

Check Electrical Components

Storms can casue surges, outages, and breaker trips. Before powering up your HVAC system:

  • Inspect your breaker box: Reset any tripped breakers related to the HVAC system.
  • Look for burnt smells or scorch marks: These can indicate a surge or electrical damage.
  • Consider surge protection: If you don’t already have a surge protector installed on your HVAC system, this is a great time to ask your HVAC tech about installing one.

Test the Thermostat

Once you’ve ensured the outdoor system is clear and dry:

  • Turn your thermostat to “Off” before switching the breaker back on.
  • Then switch it to “Cool” or “Heat” (depending on the season) and slowly lower/raise the temperature to test if the system kicks on.
  • If your thermostat is blank or unresponsive, it may need new batteries or have sustained damage.

Inspect Indoor Components

The air handler or furnace (usually located in your basement, attic, or closet) should also be checked for:

  • Water damage or leaks.
  • Unusual noises when the system starts.
  • Wet insulation or signs of mold, especially if your home lost power and humidity levels rose.

Tip: Change your air filter after every major weather event; debris and moisture in the air can clog it up quickly.

When to Call a Professional

If you notice any of the following, do not attempt to operate the system:

  • Your HVAC unit was flooded
  • There are exposed wires or electrical smells
  • The system makes loud or unusual noises
  • You see visible damage to any component

A professional HVAC technician can safely inspect, repair, and test the system – and help you avoid long-term damage or safety risks.

Need Help? We’re Here for You

At 4 Winds AC and Heating, we’re proud to help homeowners across San Antonio and surrounding areas get back to comfort quickly and safely after a storm. Our licensed technicians are available for any post-storm inspections, emergency repairs, and surge protection installations.

Call us: 830.538.9988

Schedule a vist: 4windsacandheat.com