Our oven has quit coming on. It is thought the problem is with the gas going to the right place. The broiler works but it seems that the gas is coming from the broiler when the oven is on. There is no gas being emitted around the ignitor. There is a strong smell of gas that fills the room quickly. This is a self cleaning oven. We had a problem once before and noticed a grandchild had turned the knob that says "bake or broil," and "clean or time baking." After the knob was turned back to bake it worked until recently.