How do I change the auto-off timer on the machine?

Press and hold the power button for about 5 seconds (on either a powered-on or powered-off machine) until one beep sounds. Then press the espresso button for 10 minutes, the caffè crema button for 20 minutes, or the americano button for 30 minutes. The machine automatically enters standby if no button is pressed for approximately 10 minutes by default.