Duet dryer doesn't turn on, can't program . I open the bottom panel and found the diagnostic sheet then I tried to put it in a diagnostic mode to do the test and I can't program it nothing light up as I program. There are two boards in this dryer, the one up front for customer access and there is a control board inside on the top left, what I'm not sure about is which one of these board need to be replaced. Can you tell me which one of these board is likely to be defective and need to be replaced I do not want to order the wrong part because the parts are expensive.