Air Cooler Fins: What They Do and How to Maintain Them

Fins increase surface area for heat transfer in a heat exchanger. In evaporative equipment, the cooling media is generally a wetted pad rather than the same kind of metal fin core.

Use the cleaning method in the exact product manual. Delicate fins can bend, and water or cleaners may damage nearby electrical parts or coatings.

A technician may be able to address limited damage, but the safe method depends on the core and equipment. Avoid scraping or pressing fins without the maker’s guidance.

Mineral deposits and debris can restrict airflow through pads. The Department of Energy advises inspection and replacement of worn or torn pads as applicable.