Miele CM 7550 Operating Instructions Manual page 91

Problem
F233
Cause and remedy
The cup sensor is not inserted or is incorrectly
inserted.
The stainless steel cover of the central spout was not
fitted properly, e.g. is tilting forwards slightly.
If the central spout is moving upwards and the cup
sensor is bumped, e.g. with a cup, the cup sensor
loses its reference position.
 Confirm the message with OK.
 Switch the machine off with the On/Off  sensor.
Wait for approximately 2 min before switching the
machine back on again.
 Refit the cup sensor.
 Refit the stainless steel cover. Make sure the cover
is seated correctly.
Problem solving guide
91