Humid air, ocean winds and year-round cooling
Warm, damp air is typical in South Florida, and being near the ocean adds salt and wind-driven rain. Air conditioners run most of the year, so coils and blower wheels collect dust steadily, and damp condensate lines can clog.
Balconies and sliding doors that open to the sea breeze let in fine grit and moisture. Humid air meeting a cold duct produces condensation, which can darken insulation and leave a stale smell. A system that has run for years without service can feel as if it cools less, even when the outdoor unit is fine.
