Jura Impressa E50 - Cleaning / Descaling manual

Hello everyone
,have a Jura Impressa E50 that has not been used for years. The machine was defective, I repaired it (Brüghruppe revised, everything lubricated, Encoder replaced, steam valve with air pressure blown out...) and it runs again - yeah!

Aaaaaaber: the machine (thermoblock etc.) is very heavily calcified and the lime deposits are also visible in the pipes

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I would now like to manually trigger and run both the cleaning program and the descaling program 2-3 times without being prompted by the E50.

Can anyone tell me if and how this works on this model (possibly pressing shortcuts or similar)?

For relevant information in advance best thanks!

Best regardsMarco

Switch off the machine and press the rinse button longer. Then you can decalcify.
Press and hold the rinse button while the machine is switched on to start the cleaning program.
This is also described in the operating instructions, which can still be downloaded from the Internet.