How Often Do I Need to Change out an Evaporative Cooler Pad?

By HVAC.com on April 2, 2015

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This depends on the usage of your evaporative cooler and the quality of the water being supplied to the unit.

  • Aspen pads are changed at the beginning of each season (possibly more, depending on the scale or mineral deposit build-up on the pad).
  • Cellulose (or CelDek) pads can last up to 3-5 years before requiring replacement.

Refer to the owner’s manual of your unit for detailed instructions and a maintenance schedule.

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