I have a krups expresson coffee maker with beans ref EA80. I can't do the long rinse for 2 minutes, it flashes clean and calc I press the rinse button and the water only comes out of the steam nozzle and not the coffee nozzles then all the lights start flashing I have to unplug it to stop it. I took it to a professional for repair and he changed the sensor the first time I went back after a week because I still had the same problem and he unclogged the coffee nozzles, but the problem is still there I can't do the clean and calc rinsing? Can you help me? Thank you very much.