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Sub-Zero Pure Air Icon Flashing

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Pure Air Information

The Pure Air icon flashes when the air cartridge needs to be replaced.

  • This occurs after 365 days of use while the unit is on and the air filter is on.
  • This occurs earlier if the bulb inside the cartridge burns out.

No harm will be done to the Sub-Zero unit if the air filter is not replaced or not used.

Pure Air Icon Is Flashing

Purchase Replacement Filter

To purchase a replacement filter, see How to Purchase Air Filters.

Replace Filter and Reset Icon

If the Pure Air icon flashes intermittently, refer to the product-specific instructions to replace the filter and to stop the Pure Air icon flashing:

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