Miele CM5500 Operating Instructions Manual page 61

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.
 Switch off at the wall socket and remove the plug.
Wait for two minutes before inserting the plug
back in the socket and switching back on.
 Remove the brew unit and rinse under warm
running water.
 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. Then close the appliance
door.
Problem solving guide
appears in the display,
61