u/Big-Sheepherder-5063

Hi All. I have an “American Range” that is 13 years old and over the last few months the oven has started misbehaving. It takes a long time to get up to temp, and the gas supply/burner sounds like it’s sputtering. Hoping someone here has run into this issue and could offer some advice. I’m a do it yourself we do not ready to call in a repairman yet. You can see the issue at ~15 seconds in the attached video.