Abstract: A temperature control system for controlling an oven temperature comprises a potentiometer and a processor. The potentiometer comprises a shaft and at least a first and a second terminal, and provides a variable resistance between the first terminal and the second terminal in response to a rotation of the shaft. The variable resistance forms a resistance output value. The processor is configured to detect one of a plurality of set point modes each comprising a different number of non-sequential temperature set points each of which span a range of resistances of the potentiometer, and convert the output resistance of the potentiometer into a temperature setting signal that corresponds with a temperature assigned to the resistance range of the measured resistance output.