A foreign object (such as a cherry pit or a small shard of glass) could be blocking the drain pump. The drain pump or non-return valve could be blocked.
Clean the drain pump and the non-return valve as follows:
Turn off the dishwasher.
Disconnect the electrical plug.
Remove the filter combination from the wash cabinet.
Scoop the water out of the wash cabinet using a small container.
Press the catch for the non-return valve inward (1).
Pull the non-return valve up and out (2).
Rinse the non-return valve well under running water.
Remove any foreign objects from the non-return valve.
The drain pump is situated under the non-return valve (arrow).
Remove any foreign objects from the drain pump. Check the drain pump impeller by manually turning it. You will feel a little resistance when you turn the impeller.
Carefully reinstall the non-return valve.
If the process described above does not resolve the problem, start any program without the non-return valve and without the filter combination. Allow the program to run for approx. 10–15 seconds. This causes the impeller to rotate and removes any foreign objects that may be stuck there.
Additional information can be found in the linked video.
Model-specific information on faults and on cleaning the drain pump and non-return valve can be found in the operating instructions.
If the fault persists, please contact Miele Service or book a repair appointment online.