Recently cleaned a stove, things got messy, had to remove and clean the oven burner to clean it. Older model. Used baking soda paste and vinegar after.
When starting it I noticed a yellow flame around the thermocouple. With an endoscope camera and on the other side of the burner at the tip.
After cleaning I started it up and after around 1 minute the gas monitor started to pick up readings of 200ppm and climbing. In the oven chamber it was over 600. Did not look for yellow flame.
Reassembled and now there is a spike of ~30ppm once every 2 minutes. The yellow around the thermocouple flame is still there, haven't checked the other side. Carbon monoxide monitor did not detect anything.
There is some rust on the burner, but wholes seem clear. I could try to clear rust with white vinegar, but I don;t know how I could get inside the burner to scrub it, and it needs a coat of anti rust otherwise it will rust again?
Has it been reassembled incorrectly?
Does rust need to be removed?