Dishwasher does not seem to recognise start button, did manage to enter Special Programme S01 and run it it showed no faults and dishwasher seemed fine after, however overnight it seemed to revert back to not starting. Had been used by impatient teenager who did not know about start button/sensor ( built in ) but we did press start and seemed ok. Have a suspicion there is not really a fault just finger trouble from pressing a myriad of the buttons, suggestions. thanks