The Kenmore range F11 error code means the keypad on the main electronic control is shorted. The only thing you can do to try and fix this error is to turn power off to the range at the breaker for 1 minute, restore power and if it still shows the F11 error code then the main control will have to be replaced to repair the range.
The control board can be purchased from the link below, make sure the control will fit your model before ordering. If you have any questions about what part you may need just ask us in chat or the parts company in chat to verify it's the correct board for your model.
This Kenmore Range F11 error troubleshooting and repair information applies to model 79094002600 and all the models listed under the related models section below.