If you use an air curtain in your business, as with any equipment it will eventually need to be replaced. You can, however, take some steps to extend the working life of your air curtain.

Air curtains are used most commonly in the food industry to create an invisible barrier of air between the inside and outside of a facility, to keep insects out and regulate temperature. Sometimes air curtains are required by regulation at loading docks. Whatever your reasons for installing one, you can make it last longer with a few simple maintenance routines:

  • Clean plastic strip doors and other equipment regularly, according to manufacturer’s instructions. Some systems have air-cleaning filters that can be cleaned or replaced.
  • Brush off air curtains every few months.
  • Wipe down the unit’s interior workings ever few months.
  • Check the belt on belt-driven units.
  • Check the connections periodically.

These tips can help you determine when it’s time to repair or replace your air curtain. The life of an air curtain can vary widely, depending on quality of product and installation, and how well it has been maintained. But here are some signs that it may soon need repair:

Noise: Fans go out of balance and components can break. If you hear excessive noise from the fan, it may need replacement.

Airstream falters. If the air stream is inconsistent or gets weaker, it’s probably time to replace the unit.

Ceases operation: Depending on how old the unit is, if it quits working it may make more sense to replace it than to try to get it fixed.