My Kenmore electric oven is now reading up to fifty degrees too hot (shows 400 but is only 350 inside). Is this maybe just an oven probe issue or is there a thermostat that connects to the probe that could be the problem. Sears sells the probe for $25 (#316233900) but does not list a thermostat. I don't want to get the wrong part
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Are you sure you got the right sensor for your model. Most sensors are thermistors that change resistance with the amount of heat applied inside the oven. Their resistance reading at room temp is different for every brand and model out there. So if you got the wrong one you would have the exact problem you describe. But you could also have a defective main control board since that is what senses the resistance of the sensor. If the sensor IS the right one then I suspect the main control unit where you set the oven temps.
Every fault code I am able to find concerning F-4 period has to do with bad oven sensor. This is the probe coming through the wall inside the oven to read oven temp and to regulate it. Hope this helps. Rick
Upon reading your post I immediately thought of a bad ignitor for the oven, but I am not sure whether you have a gas oven or a conventional electric range. So...If it is gas, I'd suggest replacing the ignitor for the hot surface ignition. If it's electric the bake element may be at fault although most range's use the broil in the preheat, so it should still climb up to 400, it would just take a really long time.
Maybe you can clarify if it's electric or gas and I can try to move you forward from there.
Has the oven run out of control or gotten too hot? The 790 series is made by Frigidaire and those fault codes are F0 to F8. F2 indicates the temperature sensor is reading too hot. Now with the double oven models, some manufactures add an extra digit to the fault codes to indicate which oven created the fault.
Your most likely fix is to replace the temperature sensor. The most probable locations for the wiring diagram is taped inside the bottom drawer, on the back or under side of the oven, or behind one of the panels on the back of the oven. This might tell you the room temperature resistance for the temperature sensor so you can test it with an ohmmeter and be sure that it is faulty. Try Appliance Parts Pros for replacement sensors.
Take your temp knob off and look in the center of the stem and you should find a small set screw. Using a small precision screwdriver, turn the screw until you see the light come on. (You won't have to turn it far.) Turn it a little at a time, maybe a 1/16 of a turn. Leave your thermometer in the oven with the door closed and at or near the temp probe that is in the oven. This way, you are getting a true reading.
the thermometer is most likely the problem, the calibratation is probably off. If you have access to a accurate digital thermometer it is relatively simple to do. If you do have one just take and set the knob to 250 degrees and when the oven gets to 255 it should go off and come back on at 245 degrees. If it's a digital there shopuld be a potentiometer that you have to adjust. good luck