How Often Should an AC Be Serviced in Florida?

Short answer: twice a year for professional visits, filters every 30–90 days — because a Florida system compresses a full northern year of wear into roughly half the calendar. The national “once a year” advice was written for climates where the AC rests six months. Ours doesn’t.

The Florida math

A system in Ohio might run cooling 800–1,000 hours a year. A Gulf-coast Florida system runs several times that — cooling from spring into late fall, with humidity work in between. More hours means more of everything maintenance exists to catch: more air (and dust) across the coil and blower, more condensation through the drain line, more electrical cycles, more wear. Service frequency should follow runtime, not the calendar printed in a national manual — which is why ENERGY STAR’s own guidance pairs annual professional checks with monthly filter attention, and why we double the professional cadence for Florida.

The schedule that fits how systems fail here

• Professional visits: 2× a year. Ideally one before deep summer (catch problems before the stress test) and one after (document what the summer did). This is the rhythm the Florida AC Protection Plan is built on — each visit includes the documented 18-point inspection.
• Filters: every 30–90 days. Heavy cooling season, pets, and open doors push you toward 30. A clean filter protects the coil and blower from becoming cleaning projects.
• Drain line: checked at every visit. Florida’s most common silent failure deserves a standing spot on the checklist.
• UV bulb (if installed): condition-checked at every visit. Bulbs fade before they fail — an unchecked lamp quietly becomes decoration in one to two years.

Seasonal and snowbird homes: a different playbook

If your Florida home sits empty May through October, your risk months are precisely the months nobody’s watching. Time the two visits around your calendar — one when you arrive, one before you leave — and get a written humidity recommendation for the empty season. A thermostat set too warm to “save energy” in a closed house reduces moisture removal exactly when humidity peaks; the right setpoint for your house is something a visit determines, not a universal number. (This pattern is half of what we see in Venice and the island communities.)

What skipping service actually costs

No scare math, just the pattern we document over and over: the expensive Florida AC failures — drain backups into ceilings, iced coils, dead blower motors in August — almost always announce themselves earlier as small findings. A restricted drain is a note in March and a drywall repair in September. Two scheduled looks a year is the cheapest position to hold against that pattern.

The honest caveat

Twice a year keeps a healthy system documented and small problems small. It does not make equipment immortal, and a plan is not a repair warranty — ours says so in plain language. What the rhythm buys is knowledge: you’ll know your system’s real condition while your options are still cheap.