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Classic Series (CL) Air Filter Replacement


  • How to reset the air purification icon
  • How often should the air purification cartridge be replaced?
  • Is it harmful to the Next Classic (CL) unit if the air filter is not replaced?
  • How to replace the air purification cartridge


Air Filter Information

An alert appears on the control panel when the air purification cartridge is ready to be replaced.

  • Each air purification cartridge lasts approximately one year.
  • There is no harm to the Sub-Zero unit if the air filter is not replaced or not used.
  • Refer to How to Purchase Sub-Zero Air Filters for part number and purchasing information.

For other product lines and general air filter information, refer to Sub-Zero Air Purification Filter Replacement.

Replace Air Filter

To remove the air purification cartridge:

  1.  Find the air filter access door cover on the inside back wall of the refrigerator. The door is usually between the top two shelves depending on shelf placement. It may be necessary to remove a shelf if it is positioned in front of the access door.
  2. To access the air purification cartridge, slide the cover to the left. The cartridge holder will be inside.
  3. Pull the holder open, then remove the cartridge by pulling it up and out of the socket.

To install the new cartridge:

  1. Remove the new cartridge from packaging and insert with connector pointing downward.
  2. Close the holder and the air purifier door.
  3. After replacement, touch "Refresh" to reset the cartridge life cycle.

Refer to the product Use and Care Guide for further information.

See also:


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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