Gulf humidity and salt air corroding outdoor coils
Harlingen sits close enough to the Gulf that the outdoor coils on Air Conditioning condensing units take on more corrosion over time than equipment further inland, especially in yards near Ed Carey Drive and the neighborhoods closer to the Arroyo Colorado. That corrosion can lead to refrigerant leaks and reduced airflow across the coil well before a system reaches the end of its expected lifespan.
When we diagnose a repair on a Harlingen system, we check coil condition as part of the visit, since a corroded coil is a common root cause behind a system that's suddenly not cooling like it used to.
