The oven was not heating properly

After removing the oven shelves, the burner cover came right up. The ignitor was in plain sight, and after removing the screws I pulled it straight out so I could get to the wire nuts. After swapping out the old igniter and sliding the cover over the new ignitor, the new piece slipped back into place in the oven. The screws were put back in, and the burner cover and shelves put back, and the oven works wonderfully again.