This temperature sensor detects the temperature within the oven cavity. This oven temperature sensor, for ranges, works together with the oven control board to measure and regulate the oven temperature. The sensor detects the temperature in the oven cavity. If the following symptoms occur, replacing the temperature sensor could be the solution: Little or no heat when baking, oven not heating evenly, oven will not start, and/or oven is overheating. Often, if the sensor is defective, the oven temperature will fluctuate and be inaccurate by more than 50 degrees. The tool needed for this replacement is a #2 square head screwdriver or a #2 Philips screwdriver. Remember to unplug the range before installing the part.