Product Overview
How the Air Purification System Works
Many fresh foods emit ethylene gas, a naturally occurring compound that hastens food ripening and spoilage. Sub-Zero refrigerators come with an air purification system (based on technology developed by NASA) that scrubs the air of ethylene and odor every 20 minutes.
If the air purification system is turned off, the fan will not run.
The air purifier is intended to greatly reduce, not necessarily completely kill bacteria. We have not done testing specifically with the coronavirus so cannot state the air purification would reduce or eliminate the coronavirus.
How to Replace Air Filter
Find the air filter access door cover on the inside back wall of the refrigerator, upper right-hand side. 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.
To access the air purification cartridge, hold the outside cover from the bottom and rotate upward. The cartridge will be inside.
Hold the black cover from the top and rotate downward. The cartridge will pop out and can be removed.
Remove the new cartridge from packaging and insert with connector pointing downward.
The Sub-Zero logo does not have to be facing out. The cartridge may be installed with the logo facing inside the unit.
Once in position, close the black cover. Then rotate the outside cover downward until it closes against the back wall.
How to Reset Air Filter
Once the cartridge has been replaced, touch and hold PURE AIR on the control panel for five seconds to reset.
The indicator will appear in the control panel display but not flash - The timer is reset.
If the filter light does not clear:
Make sure the pad of the fingertip is used to press the button to reset the timer.
If the cartridge is replaced before the icon starts to flash, the PURE AIR key still must be held for five seconds to reset the timer.
If the light continues to flash, contact Factory Certified Service to schedule an appointment for repair.
No harm will be done to the Sub-Zero unit if the air filter is not replaced or not used.
The icon flashes signaling to replace the cartridge after about 365 days or if the cartridge bulb burns out.
Note that in Designer (formerly Integrated) units, the remaining air filter life is indicated with a percentage. 100% is full filter life, which falls to 0% as the filter is used.
How to Purchase
Replacement air purification cartridges are available for purchase through Sub-Zero’s Accessory Store or through a Factory Certified Parts Distributor by calling them directly.
Replacement air purification cartridges are available for purchase through Sub-Zero’s Accessory Store or through a Factory Certified Parts Distributor by calling them directly.
Canadian customers must order through a Factory Certified Parts Distributor. It is not possible to order filters online in Canada.
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