, I have 2 KRUPS EA80 coffee machines which have the same problem:
At the end of the production of a coffee, water remains (or arrives) in the chamber. When the piston goes back down, there is a projection of water inside then this water starts to boil creating a lot of steam inside.
I have cleaned everything and disassembled the bleeding piston (drain valve), but I don't know what to do to repair it. I tried another one that I had without more success.
pump sends water by blows but no steam.
I tried to pass a small wire through the holes, it does not come out. Same thing for water or air. I am listening to
all your advice because I do not see on the net any answer to this problem.
Thanks in advance