How to Prepare Your AC System for Hurricane Season in Florida
From surge protection to safe shutdown and post-storm inspection, here is exactly how to protect your air conditioning system before, during, and after a hurricane — straight from technicians who have helped South Florida recover from every storm since Andrew.
Hurricane season runs June through November — the same months your air conditioner works hardest. A direct hit doesn’t just threaten your roof; power surges, flying debris, and flooding can destroy an AC system in seconds. Here’s how to protect yours before, during, and after a storm.
Before the storm: the 48-hour prep window
1. Secure the area around your condenser
Bring in patio furniture, planters, and anything that can become a projectile. Check that the condenser’s mounting pad is level and the unit is anchored to it.
2. Install or verify surge protection
Power surges are the most common way storms kill AC systems. A whole-house surge protector at your electrical panel protects the compressor, control boards, and capacitors — the most expensive parts to replace.
3. Cool your home in advance
If a storm is forecast, pre-cool your home a few degrees cooler than usual. If the power goes out, the extra thermal buffer keeps your home livable longer.
During the storm: turn it off
Shut the AC off at the thermostat and flip the breaker at the electrical panel when a hurricane warning is issued. Running the system during voltage fluctuations destroys compressors. Never run a window unit during a storm, and never cover a central condenser with plastic — trapped moisture causes corrosion and mold.
After the storm: inspect before you restart
Before turning the system back on:
- Check the outdoor unit for visible damage, dented fins, or displaced panels
- Clear away all debris, leaves, and standing water around the condenser
- Listen for grinding, buzzing, or clicking sounds on startup
- Watch your breaker panel — a tripping breaker means a problem that needs a professional before restart
If your system took on water, smells burnt, or won’t start, call us before you keep trying. Restarting a damaged unit can turn a repairable compressor into a full replacement.
The smart long-term move
Consider a hurricane strap kit and elevated condenser pad if you’re in a flood-prone area. And if your unit is over 12 years old, ask us to assess whether reinforcing it makes sense or whether a new, more efficient system is the better investment before next season.
Need a hand with any of this?
Our licensed technicians serve Miami-Dade and Broward County.