We just had this installed yesterday and last night I tried to use the lower oven broiler (we didn't know that option was ONLY available in the LOWER oven which makes it impossible to visually check on the function and food except by practically laying on the floor!!). The broiler would come on, but then go off again within a few minutes and have to be reset to come back on!  Today I tried both ovens, and the same thing happened when trying to preheat them. A service man from the store we bought it from is coming Saturday to see if it can be fixed.  If not, we're definitely getting another stove rather than this model.  Even another working model would still have the issue with the broiler only for the lower oven.