I replaced the thermostat. Me!! A little old lady. Well not that old - a young fifty-ish. My 12 year old grandson helped while he kept telling me he thinks I should call a technician. I, of course, kept telling him, "I am a technician."
In the days before replacing the thermostat, we first turned off the gas. Well my family did. I was out of town. When I got home, we turned the gas on and with the dial still set on off, the igniter started heating up so .... We turned on the gas but unplugged it. We were able to use the stovetop (using a lighter since it has electronic ignition).
For the repair, we left the gas on but it was still unplugged. I watched a couple of videos but all of them were on stoves where the dial was on top at the back near the wall and mine is in front of the stove. We followed the path, unclipped and unscrewed the old one and put the new one in. Voila! It worked.