Flip open the grille compartment located at the top of the refrigerator. Turn the old cartridge counterclockwise to carefully unscrew the filter cartridge from the fridge's cartridge holder.
Throw the old cartridge in the garbage, and turn on the cool water faucet on your kitchen sink. Place the new cartridge underneath the running water to fill it with tap water.
Place the new filter cartridge's line indicator in line with the line on the fridge's cartridge holder.
Turn the filter cartridge to the right or clockwise to secure it to the refrigerator. The water filter cartridge stays in place when it is properly secured to the cartridge holder.
Push a cup against the water dispenser on the front of the refrigerator. Fill the cup with water for 3 minutes to filter the new cartridge, and press "Reset Filter" on the refrigerator's front control panel for three seconds to complete the removal and replacement process.