Hi…I have a Jenn Air downdraft gas slide-in range (model JGS9900BDS) that is about 6 or 7 years old. When turning the oven on to pre-heat, it won’t heat up past 170 or 200 degrees. How can I determine which part is my problem? Thanks!
Search this forum for "temperature sensor," then find one of the several posts here that give its resistance. Then measure your to see whether it’s in range.