Endless loop "clean" "calc" XP7180

After changing the brewing piston seal the XP7180 is in an endless loop.
After starting the brewing piston moves down, then "clean" + "calc" flash, after pressing the rinse button the machine is flushed, piston moves up, "On" display flashes a few times and the game starts again.
Who knows this error and can help?

Hello,

-Da Clean and Calc are flashing, there is a fault and there is no need for cleaning and decalcification.

-You have this error if the water connections for the flowmeter have been swapped. But it wasn't your turn.

-Anside check if there is anything in the brewing chamber and it blocks the mechanics.

-Can the microswitches work properly or is there a wire in between?

-Disconnect the machine from the mains for 10 minutes and then try again.

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Gruß
Kaffeeliebhaber

For me, CLEAN and CALC also suddenly flashed at the same time.
Have first searched what that means and later realized that I had not yet pushed the water tray and the waste container back in.

Has never happened to me before, the Krups has been in daily use with us since 2017, without problems. (I specifically bought the simple model with a rotary knob, as that is much easier to use. The innards are otherwise equivalent to the more expensive models)

Slurp...