Replaced timer. Easy job. Unplugged power. Removed large black timer knob by rotating counter clockwise, removed clear bezel, then removed set screws that held timer in place and then removed left and right set screws that held control panel in place. Rotated panel back rearward and removed wiring harness bundle connector from old timer (pay attention to orientation of how you remove wiring connector) and old timer was free and clear.
Reversed process to install new timer and job completed in less than 20 mins.