My machine broke a few days ago, water was running through instead of coffee, despite it still grinding the beans. So it seems something is wrong with the brewing unit. I tried taking it apart (with help of all the great guides on here) and checked the drainage valve, cleaned the machine and took the brewing unit out and ran cold water through it. Nothing seems to have helped and now when I plug it in, the ‘bean+’ button and ‘s’ button blink in alternation and it doesn’t react to me pressing any button. I noticed that I couldn’t really seem to click the brewing unit properly into place (although I lock the handle, I can still pull it out). Do I have to connect the brewing unit to the water supply somehow? Many thanks for the help!