I have a fairly new Melitta Latte Select coffee machine. It fairly often says Tray Full, but when I empty the tray, it still says Tray Full and refuses to work. Sometimes I can get it to work by poking around the back of the space for the tray with a skewer, but today I can't get it to work at all. How does the Tray Full sensor (and I suppose the Tray Present sensor) work? How do I get it to work more reliably?
Thank you - Rowan