Siemens EQ6

Hello,

I gave a problem with my EQ6 Extra Class and no longer know what to do.

The following happens:
The "Clean milk system" is not finished and gets stuck in the last process step - blowing through with hot air - and can then only be canceled by unplugging.
After restarting, the error message "Refill non-carbonated water or change filter" is added (I have no filter and of course only still water ) and no water is delivered.

After a while, the machine then usually just works again, coffee and espresso can be obtained without any problems.
Problematic is only again when milk-containing drinks come or when the system is cleaned.

After Internet research, I was already active, have checked flowmeter and replaced the ceramic valve. After the exchange, the error was a good week disappeared, nu he is back

Vlt has one of you still ne idea, I'm a bit at a loss.

Thanks in advance,
Happy Easter
Greetings
Steffen