I may not have read other posts as closely as I should have. Also, I learned it is important to review all the model's parts pages closely even after you have found a specific part by name on one particular page. As it turns out, there are two thermostats on this model oven. One is in the back and is listed on the "oven parts" page. The other is in the front of the oven (behind the front panel) and is listed on the "burner box and manifold parts" page. The front thermostat was the problem. Remove the front burner knobs and four screws holding the panel in place. Also, remove the ventilated trim piece just below the front panel after opening the oven door. Use a hook to open oven door if it's locked (see other posts on how to do so). Be careful the front panel doesn't fall unexpectedly (it's best to have a helper hold it while you replace the thermostat so you don't have to disconnect all the wires or risk breaking a solder or other connection). I was told by an electrician to try placing the thermostat in the freezer to reset it; he wasn't sure it would work and I will test it today. In any case, this was a very easy do-it-yourself fix and the thermostats only cost about $40 each! Save yourself the cost of calling in a repairman and do it yourself after buying the part from AppliancePartsPros (the company got me the part the next day with standard shipping and at a cost significantly less than Whirlpool even after paying the shipping fee!).