Gas burner won’t light?
If the round burner cap is not fully seated on the burner base, you will experience uneven flame patterns, lack of ignition followed by a POP, or nuisance clicking. Bosch and Thermador burner bases have an indentation which corresponds to a protrusion on the burner cap. They must be properly aligned for the two to fit together. If you use Softscrub, etc. to clean a cap, make SURE you remove all the residue from the holes in the burner cap. The burner simply will not light under these conditions.