How to Protect Your AC Before a Hurricane

Before the season (by June 1)

• Schedule a tune-up and make sure the drain line is clear
• Check that the outdoor unit is anchored to its pad or brackets with hurricane tie-downs; if they are missing or rusted, have them installed
• Trim branches near the unit and put away anything that could hit it
• Take photos of the units and their labels with the model and serial number for your insurance

When a storm is coming

• Cool the house a few degrees lower before the storm so it stays comfortable longer
• When the storm arrives or the power starts flickering, turn the AC off at the thermostat and at the breaker; power surges damage boards and compressors
• Do not run the system with a tarp or tight cover on the outdoor unit

After the storm

• If the outdoor unit was underwater or the area flooded, do not turn it on: have it checked first
• Look for debris, bent fins, a unit that moved, or damaged refrigerant lines
• Wait until the power is stable, then turn on the breaker and then the thermostat
• If the breaker trips or you hear unusual noises, turn it off and call

About generators

A typical portable generator cannot run a central air conditioner. Running the AC on a generator requires a correctly sized generator and a transfer switch installed by a licensed electrician. Never run a generator inside the house or in the garage.

Need help with this?

In South Florida the air conditioner runs almost all year. A tune-up catches small problems early, keeps the drain clear, and helps the system use less power.