Post-Storm AC Restart: What to Check Before Powering On
After a Gulf coast storm, powering the AC back on before checking for water and wind damage is how a fixable problem turns into a replaced compressor or an electrical fire.
Stop Before You Flip Any Breaker
Do not restore power to the AC system until you've done a visual check, even if the power just came back on across the neighborhood. From the outside only, look for a mud line on the cabinet, standing water around the pad, a condenser that has shifted or leaned, debris packed against the coil, and a wet or discolored disconnect box. If the unit was submerged at any point during flooding, treat it as an electrical hazard, not just a dirty coil, and don't power it on at all until a licensed pro has checked it.
Check the Line Set and Disconnect Box
Walk the refrigerant lines running between the outdoor unit and the house and look for kinks, exposed sections where insulation tore away, or lines pulled loose from fallen debris. From the outside, look at the disconnect box for wetness, discoloration, scorch, or a burnt smell. If the box looks wet, burnt, or was underwater, do not touch it and call a licensed pro. Do not open the disconnect. The deeper post-storm service notes are at /blog/emergency-ac-after-storm-charlotte-sarasota/.
When to Wait for a Professional Instead of Testing It Yourself
Skip the DIY restart entirely if the unit was submerged, if you smell anything burnt near the disconnect box or air handler, if the indoor air handler is in an attic that took wind or water intrusion, or if you're not fully sure the unit stayed dry throughout the storm. A four-point insurance inspection after a named storm often flags AC equipment specifically, and a documented professional check protects you twice, once against a compressor you fry by powering on wet equipment, and once with the paper trail an adjuster wants to see. When in doubt after a storm, call before you flip the switch.
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