The Control Lock shuts down the control panel pads to avoid unintended use of the oven(s). The Control Lock will remain set after a power failure, if set before the power failure. The only time it is not available is during the Sabbath Mode or Self-Clean cycle. When the control is locked, the TIMER SET, TIMER OFF, OVEN LIGHT and OFF/CANCEL pads will function. On double oven models, CLOCK SET will also function. The Control Lock is preset unlocked, but can be locked. To Lock/Unlock Control: Press and hold the number pad 3 CONTROL LOCK for about 5 seconds until "CONTROL LOCK" and a picture of a lock appear on the display. Repeat to unlock and remove "CONTROL LOCK" from the display.