Oven wouldn't heat up, but everything else worked, broiler and gass range

was so each, we removed the door and the racks. and the bottom drawer out. All we had to do was remove the ignitor that was held in wtih screws we could read the wires from the bottom of the oven and then put the new one in and attached the wires from the bottom. We had read reviews of others that did the same repair and were confident that we could do it because they described it and said it was so easy. Thanks everyone.