Toro Vision 1 All Zones No Water – Blown Fuse Indicates Short

10 zones, 15 years, suddenly no water on any zone. Power OK.

Check

1. Remove lower door; check two fuses.
2. Bottom fuse blown → replace same amperage.
3. If blows again on specific zone → that solenoid or wire shorted.
4. Top fuse blown → no display.