Toro Greenkeeper "INT" Mode Stuck: Controller Defective

Greenkeeper Stuck in Interval Mode

If the display shows "INT" (interval) and pressing NEXT won't advance to "CAL" (calendar), the controller's program navigation logic has failed.

Reset Attempt

1. Remove 9 V battery.
2. Disconnect AC power 60 seconds.
3. Restore power without battery.
4. Try navigating to CAL.

Verdict

If "INT" persists, the microprocessor is defective. The Greenkeeper series is obsolete. Replace with:

• Toro TMC-212 (12-station)
• Irritrol Rain Dial RD-900 / RD-1200
• Rain Bird ESP-TM2 / ESP-Me

Take the old unit to an irrigation supply store for bench confirmation before buying.