Fierst I unplugt the mashine got a nut driver unscrew the tree screws on the bottom pannel in front of the mashine. I got the paper out what is locate on the left side checkt for trable shooting ther it was F 11 means comunication problem between the computers.On the left Isee the MCU I anplugt the wires presst the little plastic clip and pusht the computer back and lifted it out of the bracket turnt the box over clipt the cecuitboard out lookt for burnmarks and see da I found my trable. I call around look on the internet for best priece and sevice.I was lucky to find AppliancePartsPros.com Icall them I got a very nice man on the line very helpfull,Thanks Dany. I ordert the MCU payd for hat it in acouble of days install it an it fix my problem.PS Thanks again. Willi.