Could I please get the installation instructions for part# AP2107868?
Answer Hello Joe,
Unplug the unit to prevent electric shock. Pull the knob off and remove the main top. Remove the two screws that secure the timer to the control panel. Holding the new timer next to the old one, remove one wire and install it on the new timer. Remove the next wire and install it on the new timer. Continue in this fashion until all wires have been transferred to the new timer. Reinstall the timer in the reverse order of dis-assembly.
The timer doesn't move in the same position all the time.
Answer Hello Sotero. Test for power to the timer motor. If there is power there, and the timer motor does not turn, you will need to replace the timer on the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
The timer doesn't move.
Answer Hello Sotero. You need to test for power coming to the timer motor. If there is power there and the timer does not advance, you will need to order and replace the timer 131930600 on the unit.