Toro GreenKeeper 212 Buttons Unresponsive – Power Cycle With Battery Out

On Program A, Run position, only time shows; buttons do nothing.

In Run, only Manual Start button works (if time programmed).
Try changing time with +/- in Current Time mode.
If unresponsive, remove 9 V battery, power off 1 minute, power on without battery.
If still dead, replace controller.

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