I had pressed the CLEAN button on my Multiserve by mistake. What can i do to cancel the descaling mode?

If you press the CLEAN button by mistake you can skip the descaling procedure just following the below steps:

1) remove the water tank
2) when the display shows 04 (it would take a minute) press the clean button again
3) after few seconds the unit will emit a beep and the clean light will turn off