(Ich kann Deutsch lesen, aber schreiben ist schwierig) Gefunden in die Beschreibung vom Einbau Heat Bed:
Notice: If you are using the Ultimaker Heated Bed upgrade with the dual extrusion kit. You have to use the new powersupply for heating the Bed, and the old powersupply for the hotends. if you don’t use both powersupplys the machine might shut down because of lack of power.