The user held a drink dispensing button down for too long.
Rather than holding the button for dispensing the drink for too long, simply tap it briefly.
If you have inadvertently changed the dispensed quantity for your selected drink, proceed as follows:
Place a cup under the central spout.
Hold the button for dispensing the drink for which you have inadvertently changed the quantity until Change appears on the display.
The required drink will now be made. Save will appear on the display.
Press the OK sensor control when the dispensed quantity in the cup reaches the desired level.
The desired dispensed quantity for the drink is saved.