DCS RGU-366 Oven will no longer heat
I'd check that and the High Temp Cutout as well
Assuming the &quot;ring light&quot; is either the Oven Heating or the Oven Ready light (or both), I'd check both the Stalled Fan cutout and the High Temp cutout (which will look similar to the cutout you have) to make sure that they have continuity.  If they're both working, though, I'd send for a new oven thermostat at that point.