How to maintain your greenhouse's cooling pads and fans during summer

Added on 26 May 2025

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How to maintain your greenhouse's cooling pads and fans during summer

(Clockwise from top left) Mineral deposits accumulating on a cooling pad surface, the installation of a new exhaust fan belt, and rinsing pads with algaecides and disinfectants administered through a hose. | Olivia J. Liebing and Dr. W. Garrett Owen, The Ohio State University

In a recent e-Gro Alert, Olivia J. Liebing and W. Garrett Owen of The Ohio State University covered maintenance checks and tips that growers should employ on their operation’s cooling equipment, such as cooling pads and fans, before the summer heat comes in full.

Without such climate management measures, high air temperature can bring about heat stress symptoms, affecting the overall quality, and therefore marketability, of the product. Here are the steps Liebing and Owen recommend to ensure your cooling system is running at peak efficiency to ensure optimal plant health.