Try testing the door lock switch this code will sometimes pop up making you think it's a main control issue but i've seen bad door locks with this code. In most cases when a unit doesn't go into spin mode properly first check the door switch which is the cheaper part then check the motor control unit.......Door switch should have a loud click at the beginning of any cycle....if you hear a buzz it's bad or if you hear nothing at all it's either disconnected or bad or the main board isn't sending the voltage to the door switch when needed.....check for voltage at the door lock and make sure you have a 120v reading while pressing the start button on any cycle.......also there will be a constant 120v connector on the door switch so make sure to look at the tech sheet to determine the one coming from the main control start button circuit.