Control light comes on, dings 3 times and turns off, door open and unable to close it. Someone wrote it was the user interface.. or part 6. on the diagram.. Unable to run diagnostics on it. Not sure which control panel has the pins in it to test for continuity when electrician comes between 1 to 3 for the door lock and the other 3 for the motor.. If those are ok and switches all facing upwards?? figure it's a communication problem. .and it needs a CCU.. this machine has 9 CONSOLES on its order page and three different control boards two called electronic circuits. Not sure if I should order the door latch kit etc. and try to get the door closed to see if I can start the diagnostics.. or since the CCU works both the door ,etc. or it could even be the wiring harness I suppose. Where do you start? ??