oven heats to temperature but does not maintain temperature. Is it the sensor?
You would want to check the oven sensor to make sure that it is good. You can test this by checking the resistance of the sensor 12001655which should be around 1100 ohms at room temperature. If not then the sensor is faulty and would need to be replaced. Also check the wiring from the sensor to the control board. If the sensor and wiring checks ok then the most likely cause would be the control board W10162787.