If your Kenmore oven turns off by itself, the touchpad is the most likely cause, especially if some buttons respond intermittently or not at all. Replace the touchpad when its controls are unreliable. A blown thermal fuse is another possibility, although it is less common. The fuse can trip if the oven gets too hot, and a blown fuse will prevent the oven from heating. Test it with a multimeter for continuity. If it has no continuity, replace it because a thermal fuse cannot be reset. If several buttons work but others do not, the touchpad and control panel may be defective. If none of the buttons respond, the control board is more likely at fault. Also check for an incoming power problem, such as a tripped circuit breaker, when the oven keeps turning off or shuts off while baking. Loose or burned connections, failed relays, or another internal fault can cause the control board or main control board to stop sending power to the oven. Enter your Kenmore range, stove, or oven model number to find the exact replacement part for your appliance.
01 - Kenmore Range/Stove/Oven Touchpad
If the oven turns off on its own, determine if some of the buttons on the touchpad respond intermittently or not at all. If so, it's likely the touchpad is faulty and should be replaced.
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If the oven gets too hot, the thermal fuse trips to shut off power to the oven. If the thermal fuse has blown, the oven will not heat. However, this is not a common occurrence. To determine if the thermal fuse is at fault, use a multimeter to test the fuse for continuity. If the thermal fuse does not have continuity, replace it. The thermal fuse cannot be reset—if the fuse has blown, it must be replaced.
03 - Kenmore Range/Stove/Oven Touchpad and Control Panel
If an oven won't turn on, it's possible the touchpad and control panel is defective. One way to help confirm this is to determine if some touchpad buttons respond while others don't. If some of the buttons still work, then it's quite probable the touchpad and control panel is faulty and requires replacement (if none of the buttons work, a defective control board is more likely the cause of the oven not turning on).
If an oven turns off on its own there could be an incoming power problem. Verify the circuit breaker hasn't tripped.
Common
05 - Kenmore Range/Stove/Oven Control Board
The board sends power to all the components in the stove. If the control board connections are loose, or burnt, or the control board is turning off on its own, one of the relays or other components may be bad and the control will need to be replaced.
The main control board sends power to all the components in the stove. If the control board connections are loose, or burnt, or the control board is turning off on its own, one of the relays or other components may be bad and the control will need to be replaced.