The brew unit filter is blocked.
The moving parts of the brew unit are lubricated. Cleaning agents will damage the brew unit.
Clean the brew unit. Proceed as follows:
Remove the brew unit from the coffee machine.
Clean the brew unit by hand under warm running water without using cleaning agent.
Wipe any remaining ground coffee from the filters with your fingers.
One filter is located in the funnel; see figure. The other filter is to the left of the funnel.
Dry the funnel to prevent ground coffee from sticking to it the next time a coffee is made.
Slide the brew unit into the coffee machine.
Start the Degrease brew unit program.
See the operating instructions for information on degreasing the brew unit.
