The dishwasher stops after about 15 minutes into the cycle. I checked the heating element and it's good. I checked the high limit thermostat for continuity and it checked out ok. What's weird is that if I open the door about 12 minutes or so into the cycle and then close it, the dishwasher will continue on the full cycle. I don't think the heating element is getting hot though - I'm assuming it should fee hot to the touch when the "water heating" light is on. Should I replace the control board?

thanks