After research showed that the fix was more than likely a bad oven igniter, I replaced the oven igniter. All videos I watched showed it to be a simple repair that could be totally accessed inside the oven floor by removing the oven floor cover (2 screws) and the burner diffuser (1 screw), which was true, except the two screws that mount the igniter could not be removed without removing the entire bottom of the oven floor because of the angle and lack of clearance of the 2 screws. Poor design. What should have taken 15-20 minutes actually took 1.5 hours by the time I finally figured out that the entire bottom of the oven had to be removed and how to do that. This stove is a fairly old GE XL44.