Odie K Brownsburg , IN July 01, 2016 Appliance: Jenn-Air Electric Wall Oven WW27430WC Jenn-Air Oven Ww27430wc: Broiler comes on during bake cycle setting alrm and f 2 failure code. How to replace Oven Temperature Sensor Kit. Replaced upper relay (circuit) board. At the same time I replaced the temperature sensor in the upper oven also. Both parts had been replaced previously, although for different problems. Oven is a 1995 product, so repeat failure is probably not a big surprise. I preheated the oven to a couple of different bake temperatures with no problem. Then, I ran it through the auto-clean cycle, worked fine. Oven has since been used for a couple of pizzas and baked potatoes. So far, so good. 17 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes