My gas oven stopped working. The burners still work. I looked through the posts, and think I’ve determined it is the valve/regulator. When I turn on the oven for either bake or broil, the ignitor glows bright orange but the oven does not fire up.
How did you ‘determine’ that? What tests were performed?
That doesn’t necessarily mean it is good. Ignitors can glow and still be defective.
The oven valve can not usually be directly tested except for the case of the oven ignitor not glowing at all (in which case it would have infinite resistance). If the ignitor IS glowing, only an amperage test on the ignitor circuit will suggest whether the valve may be responsible for no gas flowing.
You can read about how such a gas oven ignition system works and the tests necessary to diagnose problems with it at the following link: