Unplugged the power cord. Removed the knobs and screws that held the narrow panel behind the knobs to the stove top. The ingniters are attached to the same post the control knobs are pushed on to. Removed the small retaining clip which is directly in front of the igniter on the post with a tiny screwdriver. Be careful not to let it get away from you as it is easy to loose and can fall into the inner workings of the stove making it nearly impossible or impossible to recover. Remove the faulty igniter switch. (This is determined by which burner was sparking on its own schedule). The wires will pull off the switch. If you didn't unplug the stove or otherwise disconnect the electrical power and you touch any bare part of the wire plug you will be reminded what 110 volts feels like. Install the new igniter switch and push the wires on to the new switch. Install the tiny clip in the grove on the post. This is where it is easy to loose the little clip so be careful. Make sure the clip is in the grooves on the post. Turn the electrical power on and make sure the igniter is working properly. Install the front cover and knobs. I have replaced 4 of these switches in a 10 year period. I keep an extra on hand tucked behind the panel for easy rapid repair when needed as once the switch starts sparking the only way to stop it is to cut power to the stove or the individual switch which requires the panel to be removed. If all goes well its a 20 minute job. If the little clip gets away from you its a 30+ minute job.