The brew unit has not been sufficiently cleaned.
Clean the brew unit manually. The moving parts of the brew unit are lubricated. Cleaning agents will damage the brew unit. Only clean the brew unit by hand with warm water. Do not use any cleaning agents. Remove and clean the brew unit once a week. Also clean the area below the brew unit once a week.
The brew unit must be cleaned manually in addition to the automatic cleaning. A cleaning tablet may be required to degrease the brew unit even if the cleaning cartridge is fitted.
Proceed as follows:
Open the appliance door.
Remove the water container.
Press the button on the bottom of the brew unit handle (1).
While doing so, turn the handle forward (2).
Pull the brew unit sideways first (1).
Then slide it out forward (2).
Tilt the brew unit forward (3).
Once you have removed the brew unit, do not change the position of the handle on the brew unit. Otherwise the brew unit cannot be reinserted.
Clean the brew unit by hand under warm running water without using cleaning agent.
Rub away any residual coffee from the filters. One filter is located in the funnel. The other filter can be found to the left of the funnel.
Dry the funnel to prevent ground coffee sticking to it the next time a coffee is made.
Clean the interior of the coffee machine.
Use your vacuum cleaner to remove dry ground coffee.
