The keypad has only one button that responds, it's the (delay start) button. The clock displays the time but cannot be set. You can hit the delay start button to make the clock stop blinking. I checked the three terminal door switch first. It was ok. I replaced the control board. That didnt do it so I got another control board thinking that one was bad from the company. That one didnt work eithier so I sent it back too. I replaced the keypad. That didnt work. No error codes are displayed. You can hit the bake and broil buttons at the same time to put it in diagnostics but all they do is beep. No diagnostics. Checked voltage to neutral and ground. Still nothing. Why wont it work, could it be another bad board?