Hurricane season in Miami runs from June 1 through November 30 — six months when your AC system faces its greatest risks. From surge damage when power returns to flooding that destroys outdoor units, hurricane-related AC problems are one of the most common service calls we receive every fall. Here's exactly how to protect your system before, during, and after a storm.
Before the Season: Schedule a Tune-Up — The best time to prepare your AC for hurricane season is in May, before the season begins. A professional maintenance visit ensures your system is running efficiently and that any existing issues — a failing capacitor, low refrigerant, a corroded contactor — are fixed before you're dealing with them in 95°F heat after a storm. Ask your technician to inspect and clean the outdoor condenser unit thoroughly. A clean unit sheds debris better and restarts more reliably after a power outage.
Secure Your Outdoor Unit — Florida building code requires hurricane straps on all outdoor AC condensers. Hurricane Andrew (1992) destroyed thousands of unsecured units across Miami-Dade. If your condenser isn't strapped down, or if the straps are rusted and compromised, have them replaced before June. Also clear any vegetation within 2 feet of the unit — in a hurricane, branches and palm fronds become projectiles that can destroy fins and refrigerant lines.
Document Your System for Insurance — Before hurricane season, photograph your AC system — both the indoor air handler and outdoor condenser. Record the model number, serial number, and installation date and store this information somewhere safe. Post-hurricane AC replacements are common after storms like Irma (2017) and Ian (2022), and proper documentation speeds up insurance claims dramatically.
Install or Check Your Surge Protector — Power surges when electricity is restored after a storm are a leading cause of AC compressor failure. A whole-house surge protector installed at your breaker panel, or a dedicated HVAC surge protector wired directly to your AC disconnect, can protect a $3,000–$5,000 compressor from a damaging voltage spike. This typically costs $150–$300 installed and can save your entire system.
During the Storm: Turn It Off Completely — When a hurricane is imminent, turn your AC off at the thermostat AND at the breaker. Do not rely on just the thermostat — you want the system completely de-energized so that when power surges or fluctuates during the storm, there's no path for electricity to damage your compressor, capacitor, or control board. Before losing power, pre-cool your home to around 72°F to give yourself a buffer — a well-insulated South Florida home can maintain comfortable temperatures for several hours after the AC shuts off.
After the Storm: Don't Rush to Turn It On — The most common mistake we see after hurricanes across Miami, Homestead, and the Keys: homeowners immediately flip the breaker as soon as power returns, without inspecting the system first. Before restarting, walk outside and visually inspect your condenser. Look for debris inside or around the unit, check for bent or crushed refrigerant lines, look for standing water or flood damage, and listen for anything that sounds loose or rattling. If the unit was submerged — even partially — do not turn it on. A flooded compressor requires professional inspection before operation.
Post-Storm Professional Inspection — After any major storm, we recommend a professional system check before running your AC. A technician will check refrigerant charge, inspect electrical components for moisture damage, clean the coil of any embedded debris, and verify the system is operating within normal parameters. Catching a small storm-related issue early prevents a much larger failure in the weeks that follow.
Beware of Post-Hurricane AC Scams — After every major storm, unlicensed contractors flood affected areas offering AC repairs and replacements at suspiciously low prices. Always verify a contractor's license at myfloridalicense.com before allowing any work on your system. Unlicensed work may void your equipment warranty, fail to pull required permits, and leave you with a system that fails again weeks later.
Whether you need a pre-season tune-up, a storm protection consultation, or emergency service after a hurricane, MGM A/C Appliances is here for Miami-Dade County homeowners year-round. Call us at (786) 352-0084 — we're available 24/7 for storm-related emergencies and are fully licensed and permitted for all AC work in Miami-Dade.