Fill the water tank with filtered or bottled (still) water, then plug in and turn on the machine. The three icon buttons and indicator light(s) will blink simultaneously. Place a cup or container on the drip tray directly under the dispensing spout. Press the medium cup icon and wait as water fills the cup. Empty cup and return to tray. Repeat this process until the indicator light stops blinking. For more detailed instruction, please refer to your User Manual.