Miele CM 7750 Operating Instructions Manual page 95

Problem
F73 or
Check the brew unit
Possible cause and remedy
The brew unit cannot be positioned correctly.
 Switch the machine off with the On/Off  sensor.
 Remove the brew unit and clean it by hand.
 Push the coffee ejector of the brew unit into the
correct position (see diagram).
 Do not fit the brew unit. Close the appliance door
and switch the machine on with the On/Off 
sensor.
This will initialise the brew unit motor and put it back
into the start position.
 When
Insert the brew unit
open the appliance door and put the brew unit
back in the machine. Close the appliance door.
If the message appears again, reduce the amount of
coffee and/or select a finer grinder setting. Some
types of coffee have a much higher grinding volume.
Problem solving guide
appears in the display,
95