I have a gas stove top left front burner that occasionally ignites (sparks) as the knob is turned. Lights fine with a match and I get a spark if the other knobs are turned.
The burner base and electrode are free of gunk, but the issue persists. I also filed the flame spreader. The remaining three burners spark just fine and ignite normally as their corresponding knobs are turned.
I probably will need to replacing the spark harness and was looking for a Bosch service manual or instructions on removing the top and front panel. I understand the harness replacement is straight forward once i have access. I have replaced the front panel of a Jenn Air gas slide in downdraft range and believe the Bosch is similar.