[FONT=&quot]Unplugging and re-plugging the cables that go to the power relay board brought this oven back to normal operation!

Although I have to acknowledge an accurate diagnostic code in this case, I certainly can't recommend Thermador electric wall ovens. Not only have I had to replace the control board previously (which cost over $200); pressing the self-cleaning button trips the thermal protection switch (which is quite difficult to reach to reset, and cost me a service call to learn how to do it). Other readers of Consumer Reports report Thermador as among the less reliable brands. My experience is pretty lame considering I paid about $2,000 from a discount vendor for this "premium" oven back in 1999 when a dollar was worth more than it is today, and the oven is only used a few time per year. [/FONT]