Remove the plastic top cover

Remove the UV lamp from the Water System

Wait 5 seconds then re-insert into water system, being sure that the UV lamp is fully inserted

The letter U (for USED) or N (for NEW) will appear on screen

In this case we will want the screen to show the letter U onscreen. Press the blue cold dispense button once or twice to cycle between the letters until the screen displays the letter U.

Press the menu button to confirm your selection

Try to dispense cold water