I had the exact same issue as Mark Forster did. Same washer same board with the CN11 plug missing. The answer I got was that the plug was missing because the function was added to the board itself, I think. But, the absolute impression I do remember getting is that the plug you held in your hand was now unnecessary. The reason my memory is shady here is because that's been 11 years ago, and the washer and replacement board has been going strong ever since. I did have to replace the pump twice.. due to nickles and dimes, grrr.