Oven Controls
For the one that is for sale for 225, there are 2 oven controls - one for the function (bake, timed bake, broil) and one for the temperature of the cavity. The third rotary control is (was) for the Sensi-Temp surface unit. The front left was the Sensi-Temp burner, but appears to have been replaced at some time. There should be a button in the center of the burner that is spring loaded and presses against the bottom of the pan/pot and senses the temperature of the pan/pot. The correct (i.e., desired) temperature is controlled by the third rotary control and is infinitely adjustable. The push-button switches for the Sensi-Temp burner allow for a 4-inch, 6-inch, 8-inch or griddle selection (griddle locks the front and rear burners together function/temperature-wise). My 40" range has 5 rotary controls; 2 for the main oven (as described above), 2 for the companion oven (identical to the main oven), and the same Sensi-Temp rotary control for the left front burner.
lawrence