My Jenn-Air oven failed on Christmas day. When you press Bake and set a temperature the preheat message is displayed for about 15 seconds or so. Then it blanks out and nothing happens. The same thing happens on Broil. A repair guy came in on Monday and did some troubleshooting. He said the relay board was bad. I ordered one and replaced it today. Same problem. The oven sensor reads 1060 Ohms. The hi limit switch has continuity. I called the repair guy and he says it is the control board. Is there anything else it could be? I could have easter egged this thing myself without paying for a service call. Thanks, Marty