Why maintenance matters more here
Across most of the US, an AC runs a few months a year. Here it runs most of the year, in humidity that grows algae in drain lines and in salt air that corrodes coils near the coast. That's why the most common South Florida breakdowns are also the most preventable: a clogged drain line that shuts the system off or floods a closet, and a weak capacitor that fails on the first 95-degree afternoon.
A tune-up won't make an old system new. What it does is find the cheap parts that are about to fail while they're still cheap, and keep efficiency where it should be.
What we check
Electrical
- Capacitor readings against their rating (the number-one summer failure)
- Contactor contacts, wiring and terminal tightness
- Compressor and fan motor amp draw
Refrigerant and airflow
- Operating pressures and superheat/subcooling
- Temperature split between return and supply air
- Blower wheel, filter and return airflow
Water
- Condensate drain line cleared and treated
- Primary and secondary drain pans checked for rust and cracks
- Float switch tested so a clog shuts the system off before it floods
Outdoor unit
- Coil rinsed (salt and debris), fins inspected
- Pad level and hurricane tie-downs
How often
For most South Florida homes: once a year, before summer (March to May). Twice a year makes sense for coastal homes within a mile or two of the water, homes with pets or allergy sufferers, and systems over 10 years old. Between visits, change or clean the filter every 1–3 months. See how often to service your AC in South Florida.
Your part: three habits
- Filter. Check it monthly in summer. If it's gray, change it.
- Drain line. If your line has an access cap near the air handler, a cup of white vinegar every couple of months keeps algae down.
- Outdoor unit. Keep two feet clear around it: no hedges, no stored furniture, no grass clippings blown into the coil.
Where we do this
AC Maintenance & Tune-Ups across Miami-Dade, Broward and Palm Beach counties. Local notes (housing stock, permits, common problems) for each city:
AventuraSunny Isles BeachNorth Miami BeachHallandale BeachHollywoodNorth MiamiMiami GardensMiramarPembroke PinesHialeahDavieMiami BeachFort LauderdalePlantationMiamiDoralSunriseCoral GablesWestonPompano BeachKendallPinecrestCoral SpringsDeerfield BeachBoca RatonDelray BeachBoynton BeachWest Palm Beach