Neff DW not starting

Hi i have a Neff S51E50X1GB/01 dishwasher which is not starting a wash. The lights come on, i set a wash and hear the familiar relay click and the heatpump start for a second and then nothing. I found it still in a cycle (with the cleaning/operating light on) and full of water. When reset it didn’t pump out so i checked the impeller which was fine. So i manually operated the anti flood switch which did cause the machine to empty the water quickly. At this point i started to check the heat pump out of desperation when my meter failed :hmm:. Is there a test mode or way of reading fault codes on these? or anything else that could help me? Thanks for your help 🙂