AB&E Heating and Air Conditioning - Saint Augustine's Trusted HVAC Services

In our humid climate, this is often a clogged condensate drain line. As your AC removes moisture from the air, it drains through a pipe that can get blocked with algae and mold. We clear the clog, flush the line, and can install preventative treatments to keep it flowing freely and prevent water damage.

This is a classic sign of a failing reversing valve, a key component that switches your system between heating and cooling. Our technicians will diagnose the valve—checking for electrical issues or mechanical failure—and perform the precise repair or replacement needed to restore your home's proper heating function.

Our preventative maintenance tune-up is your best defense. We thoroughly clean the condensate drain line and pan, check the entire heat pump system (including the reversing valve's operation), and ensure all components are working efficiently. This proactive service helps avoid unexpected breakdowns, especially during our peak heating and cooling seasons.