Bill I have a GE profile cooktop (about 9 years old). one burner will not spark. I have replaced the ignitor, the switch assembly and the spark module (in that order). I inspected the wire going to the burner in question and it looks good, no evidence of burn, the insulation on the wire appears intact and is not hard or brittle. So far I think I just bought a lot of unneeded parts. Any ideas would be appreciated. Bill
Answer Hello Bill, When only one surface burner isn't working, it is normally because of a dropped ground. The ignitor has to have a good ground to spark to, as you know the circuit has to be complete back to ground. The cook top is made up of multiple steel parts, all screwed together. The way I usually restore normal operation is to remove all of the parts that are screwed together and use a piece of 120 grit sand paper to "clean" the surfaces that contact to complete the ground up to the ignitor area. This will solve the issue 99% of the time. The other 1% is a bad ignitor, start switch, or spark module. Since you have replaced them already, the ground will be the issue. Read More... Answered by AppliancePartsPros.com | Saturday, December 1, 2012