Miele Dishwasher Operating Instructions Manual page 54

Solving problems
^ Lift up the non-return valve and rinse
well under running water.
^ Remove all foreign objects from the
non-return valve.
54
The drain pump is situated under the
non-return valve (see arrow).
^ Remove all foreign objects from the
drain pump (watch out for glass or
bone splinters which are particularly
difficult to detect and could cause in-
jury). Turn the drain pump impeller by
hand to check that there are no more
obstructions.
^ Carefully replace the non-return valve
and secure it with the locking clamp.