Light bulb 40 watt 120 volt medium standard base. Used in many refrigerators and ranges.
Oven igniter. The igniter draws electrical current through the oven safety valve to open it. If the igniter glows for more than 90 seconds without igniting the gas flame, this indicates that the igniter is too weak to open the valve.
Oven temperature sensor. The oven sensor works in conjunction with the oven control board to regulate the oven temperature. If the oven sensor is defective, the oven temperature will be inaccurate by more than 50 degrees Fahrenheit.