Hello everyone,
I may have the beginnings of an answer to this problem. I myself have a Krups bean-to-cup coffee maker, model EA81P870. Same symptoms, at start-up the 4 red lights start flashing at the same time, then you hear a little tick inside (sounds a bit like a relay), then no way to start a cycle, and of course code 9 error too.
After searching a lot on You...be and on forums I came across an explanation: a problem with the temperature sensor which you can access by dropping the front panel, and which is located behind a black cover. With the help of various videos, I was able to remove the top panel, the one that makes up the rear and side panels, then I removed the front panel. I then noticed that two white cables were coming out of the black cover I mentioned earlier, and that one was moving much more than the other. When I removed the little black cover, I realized that one of the two plugs was no longer in place. I suppose that with time and the vibrations that occur inside such a machine, this lug has come loose (but I don't know how it was really fixed, it seems to have been riveted).
Above you say that it can be re-fixed by soldering ... I'm skeptical about that, would it really work?


Thanks in advance 
Eric
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