Miele Dishwasher Error F85 on display

Richdave, I cant seem to find E codes for the Miele. It seems like they are using F codes. F85 would be Slide shutter signal change fault. "The slide shutter, which is part of the circulation pump, alternates water supply to the spray arms. The slide shutter moves back and forth to open or close water paths to the different spray arms. For 30 sec. both the top and bottom spray arms are supplied and during the next 30 sec. the middle spray arm only. A sensor monitors the movement of the slide shutter. If no movement is detected, the dishwasher faults out with an F85." The slide shutter is part of the circulation pump assembly. Disconnect pump and check for blockage at pump hose. If that does not help replace the circulation pump. The codes are listed right here