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F2 E3 means that the oven sensor has failed which commonly happens when the oven fails during self clean. The oven gets so hot that sometimes the sensor will fail. All you can do is let the oven cool down and wait to see if it will reset. If it doesn't, the sensor would have to be replaced before you can use the oven I'm afraid. And since the sensor is shorted, the door will remain locked for safety reasons since it doesn't know the temperature inside.
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