Hello! Sorry about the Google translation. Your knowledge is our last hope. A system error occurred when switching on the coffee machine. 8. after I had disassembled the coffee machine, I saw the reason When the disc is in the correct position, there is a slight clockwise movement (~ 10 °), followed by a system error 8. If the brewing unit is connected, error 8 is also displayed twice, after which the disc is in the correct position (the brewing unit does not allow the disc to move further in the clockwise direction). I draw your attention to the fact that the switch in the area of the yellow wire is not clamped by the brewing unit.