The red "STOP/CLEAR" button does not work. does part ap4216489 have the switch in it or just the front membrane? Can it be replaced with out removing the microwave from above the range?
The membrane switch is the touch pad which has the microswitches inside that would operate the stop/clear and all other buttons. You can remove the upper grill and take a screw from control panel to access without removing microwave.
Light for time and clock no longer works. Is this the part that would fix that problem.
The display light and clock would be part of the PCB assembly W10127098 which would need to be replaced.