Bill B Salem , OR October 03, 2015 Appliance: Whirlpool 30" Electronic Range Freestanding Designer Style Self-Clean Oven RF3663XDW0 Whirlpool Range Rf3663xdw0: When you turned on the oven an f3 showed on the display oven would not work. How to replace Oven Temperature Sensor. I ordered a oven temperature sensor to correct the problem. The part came in two days. The same part was $80 at Sears, where I only paid $28 online. I watched a you tube video on how to replace it. I took the back of the stove off and the replacement was just as easy as the video said. I am not a real handy man, but it was not hard at all. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes