I needed to remove the rear panel to replace the sensor, but unfortunately, that was not the problem. It could have been; but also, it could have been the electronic control, or the gas control valve. This was the cheapest "trial" fix. I did talk to a "Warranty Repair Man", who said that IF it was the electronic control, because of the age of the oven, (13 years) the part would not be available and would need to be fabricated by the manufacture. Even then the cost would approach the cost of a new oven. So, we abandonded the idea of repairs to this one. I guess 13 years is a bit to much to expect of a machine this day and time. Things are made to use-up and throw away. Such is life ! !