My Miele g646 sc plus is not working. It fills and it drains but the filling takes too long and is in short bursts (of a few seconds then a few seconds pause) until it is up to the bottom of the blade/door. After that the inlet/drain light flashes 1 long and 4 short flashes and the machine stops.. it drains fine when restarted.
So far I have cleared and cleaned the impeller and the one way valve, I've removed the bottom tray and made sure the flood switch is clear

Jimi, June 2020