Jenn-Air Kitchen Ranges - Page 3 - Recent Questions, Troubleshooting & Support

Obviously something is shorting out. Check all wiring.

the lamps are controlled by a triac that is probably mounted on the control board ... its not unusual for light bulbs to draw extremely high currents as they burn out ... thats because the melting tungston forms a plasma that arcs at very high current levels until a fuse or lead wire burns off inside the lamp ..thats why you see such a bright flash as they burn out .. ..as i recall lamps of 60 watts or greater have to have a built in fuse in the base ... lamps of lower wattage are not forced by law to have that .. so when they burn out they can easily damage external electronics .. so your problem is a shorted triac .. thats a transistor like device that is often used for lamp brightness control .. you can replace the entire control board $$$ or just the defective triac (like $2) .. the bad triac will read shorted between main termanals 1 and 2 on an ohm meter ...(power off of course) .. a normal one will read open ... its likely soldered in place and may have a heat sink attached ... thats an easy job for an electronic person ..

Most likely oven sensor / probe is the problem. It can be tested with an ohm meter. Not sure about your model, but most should read around 1100 ohms at room temperature. If there's a tech sheet somewhere on your unit, it should tell you.