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Thank you for purchasing an authentic Sub-Zero 4204490 Water Filter from Home
Appliance Specialists. We work directly with Sub-Zero to make sure we only sell
authentic and genuine appliance parts. Beware of other sellers who may purchase water
filters from third party dealers who cannot guarantee authenticity. Also, make sure to
only use Sub-Zero branded cartridges in your fridge. Any use of third party branded
water filters can and will cause problems to your unit and may void your warranty.
How to Access the Water Filter
• Built-In (BI) or PRO48 Series unit, pull out on the bottom edge of the grille
assembly, and tilt the grille frame forward.
• New Generation Integrated unit, remove the kick plate screws at the bottom of the
unit and tilt the kick plate out and off of the unit.
How to Remove the Water Filter
• Rotate the cartridge counterclockwise one-quarter turn, and then pull it out.
• There is water in the filter cartridge, so it is normal for a small amount to spill out.
How to Replace the Water Filter
• Remove the new filter cartridge from its packaging and carefully remove the
plastic cap.
• Insert the new filter into the manifold and turn clockwise until the filter is seated.
How to Reset the Water Filter
• Built-In (BI) models: Once the filter cartridge has been replaced, press and hold
the filter reset button (located to the left of the water filter) for five seconds in
order to reset the water filter life monitor.
• 648PRO models: Once the filter cartridge has been replaced, the control
automatically resets; the water filter life monitor and the "REPLACE FILTER"
indicator will no longer be displayed.
• New Generation Integrated models:
o Access the options menu by pressing the arrow on the left side of the
home screen
o Access the settings menu by pressing the gear icon on the options menu.
o Select the ‘I’ icon to access the information menu
o Click ‘Filters’ to access the water and air filters menu.
o Press and hold the dripping water icon on the far left for 5 seconds to
select the water filter settings.
o Continue by following the same steps below for when the change filter
message is present.
o Click ‘Filters’ to access the water and air filters menu.
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