I have a Bosch HBL5055AUC double oven and I am having issue with Bake setting. It does not appear to heat to the correct temperature. I suspect it's the element, however there appears to three elements. One for the Conv bake which is at the rear of the oven and two in the ceiling of the oven. One for broil and the other for bake...I think. To change the double element it would appear the screws have to be removed by lift the oven out and getting them from the other side.