WW12H8420EW/ST washing machine PCB schematic, error codes beyong the user manual and the problem that was started by trying to do a weight calibration. The machine worked beautifully until I tried to do a weight calibration. Door switch stopped working!?!? Tested door switch out of machine and it works fine. Error in the control code? I found a wiring harness layout for a Samsung front loading machine. Is there such a thing as a new machine start up sequence? Any and all service codes.