Saeco Incanto Rondo. My problem is: the machne makes one or two cups. When I start the third, the grinder is engaed, runs a little, then stops and a red light comes on. If I open the door and rinse off the brew group and the waste tray and reinstall, then I turn off and on the machine, then a can usually make another cup or two. The problem has been getting worse. Sometimes I find some coffe grounds in the slider inside the brew group, and I have noticed that I have a more wet waste coffee grounds than usual, but sometimes all lokks perfectly normal inside the brew group. I have changed the o-ring at the top of the main piston (red o-ring) but the problem remains. Any thoughts?? Thanks, Paul