Miele CVA 2662 Operating And Installation Manual page 54

Frequently asked questions
There is water in the waste container.
This is not a fault. This is residual water from the brewing and rinsing processes.
There is "coffee water" in the waste container.
Possible fault
The capsule plate is not inserted
correctly.
The descaling process was started accidently.
The descaling process cannot be stopped once the OK button has been
pressed. The process now needs to be completed as a safety measure.
Descaling is important to increase the life of the machine and to ensure the best
possible results. See, "Descaling".
The heat-up time has gotten longer, the water flow amount is incorrect and
the machine is not performing properly.
The machine needs to be descaled. See, "Descaling before prompted".
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Solution
Reinsert the capsule plate.