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. Also, water from cleaning plays havoc with ignition. Make sure the pieces are dry. Please note!!! if you push on burner knobs while touching the burner, you might get an unpleasant jolt form the spark. Turn off the breaker, or unplug the machine.