How to Replace Sub-Zero Air Purification Cartridge 7042798

Installing the Sub-Zero 7042798 Air Filter

Installing the 7042798 is easy, and can be done at home by yourself. Please read the instructions below for more information. 

1. To access the air purification cartridge, grasp the outside cover from the bottom and rotate upward.
2. Grasp the black cover from the top and rotate downward. The cartridge will pop out and can be removed.
3. Remove the new cartridge from packaging and insert with connector pointing downward.
4. Once in position, close the black cover. Then rotate the outside cover downward until it closes against the back wall.
5. Once the cartridge has been replaced, touch and hold PURE AIR on the control panel for five seconds to reset.
6. The indicator will appear in the control panel display but not flash.

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