Jenn-Air Cooktops - Page 7 - Recent Questions, Troubleshooting & Support

http://www.repairclinic.com/Appliance-Parts?s=t-jed8430-%3d%3dc251

This company has your knobs.

Knob is probably split/damaged and the hi voltage from igniter is running through it , remove knob inspect it and clean or replace it.

i bought mine new from HD. Neither the dd cover nor grill grates have bushings on them. however thats a good idea.

I'm assuming you mean the railcocks they are usually held on with clamps and screws.

Have a good look at the outside of the filter frame to make sure the plastic tags have not broken off also look at the mounting frame some of them have a simple clip that's easy to overlook. Ray

You have probably accidentally disconnected some wiring whilst moving it need to re explore

it sounds like you got a dead short under the glass top , it could be a wire that shorted or some type of bug that got into the elements , I would even open the top with out pulling the plug out of the wall ,if it is 10 years old mite not be worth fixing but it should be looked at before you decide Frank

After stove is turned off, the light stays on if burner still warm. If the burner never came on, then it needs to be replaced with new one.