I did a visual inspection of the igniter. It glowed but did not ignite the gas. I did some research online and found the Appliance Parts Pros website. Here I found out that the igniter must get white hot to allow the gas valve to open. I also found a video of how to replace the igniter, a complete parts drawing, and the part for my oven at Appliance Parts Pro. I ordered the part, received it in a few days, and completed the repair without a problem. The oven works fine now.