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F11 just means that the oven isn't heating properly which you know since it only heats up to 295 no matter how long you keep the oven on for. Usuaully this means that you oven igniter is beginning to fail but you could have a bad oven sensor. If you have a multimeter you can test resistance through the oven sensor if you'd like to see if it's good. The sensor should have a reading of 1080 ohms at room temperature through it. If not, then replace it. If it checks good, then replace the bake igniter below the floor of the oven because it's beginning to fail (this is a common maintenance part).
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