Miele CVA 3660 Operating And Installation Instructions page 56

Cleaning and care
56
^ Open the machine door.
^ Remove the drip tray from the machine with care.
There is a grid in the drip tray. This grid prevents the water
from spilling out of the drip tray when it is being carried.
^ Clean the drip tray and the grid with hot water and a little
washing-up liquid, or in the dishwasher and dry with a
cloth.
Make sure that the metal contact discs at the top of the
drip tray are cleaned and dried properly. These metal
discs send a signal to the machine when the drip tray is
full or if it is not in the machine. The discs will not convey
these messages if they are dirty or damp.
^ Push the drip tray with the grid along the right hand edge
back into the machine.
^ Close the door.