Charlie H Harrisburg , PA April 24, 2022 Appliance: Model WB21X5301 The oven temperature sensor was bad. I replaced it with a new one. It took about 45 minutes on my gas stove. I followed the exact directions on the accompanying video. My part arrived two day early. The oven now works fine. I no longer get the F3 warning messages. I am very pleased. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes