I am having issues with my dishwasher not wanting to start most of the time. A good while back some of the lights quit working on the keypad but it washer still worked fine, but now most of the time it won't start when you press the start button. Sometimes we can come back a little while later and press it again and it might start, sometimes. So do you think I need to replace the keypad panel or could it be the circet board thing inside the black box inside the front door. Thanks