A few weeks back, when shutting off a burner, the igniter started sparking and wouldn't stop. Working the knobs and jiggling them got it to stop. Fast forward a few weeks. Finish cooking, go sit down to eat. Hear snapping noise, go look, see burners are all off and the igniters are all sparking. Jiggle the knobs. Poof! Flames come out the top one! What a stink. Unplugged stove, finished dinner. Loosened the cooktop and investigated. Ordered switch. Two days later, part arrives. Two screws loosen the controls from the stove top, two screws loosened the stove top, two screws loosed the back plate enough to snake my hand in to unplug things. Piece of cake repair. The switch just snaps onto the gas valve. I probably spent more time typing this than it took to replace the switch. None of the gas piping needed to be disturbed.