Rain Bird ESP-6SI Controller: Zones Won't Activate After Repair

After fixing a leak in a 1-inch tee, a Rain Bird ESP-6SI controller shows zone run times but no heads pop up. Water supply is on, controller reset didn't help, and no wires were visibly damaged.

Troubleshooting Steps

1. Verify Water Supply: Manually open a valve at the valve box using the bleed screw or solenoid. If water flows, the issue is electrical.
2. Check Controller Wiring: Ensure all field wires are firmly connected to the controller terminals, especially the common wire.
3. Inspect Valve Connections: Confirm wire nuts at the solenoids are secure and corrosion-free.
4. Common Wire Damage: The repair may have nicked the common wire, disabling all zones.

If manual valve operation works, focus on the controller and field wiring. A multimeter can test for 24 VAC output at each station terminal.