Multiple Zones Activate After Utility Digging

After Verizon and Atmos Gas dug near a Hunter Pro-C system, multiple zones run simultaneously. Wire tracing showed no issues, and controller replacement didn't help. A water line was cut and repaired during the work.

Diagnosing Crossed Wires

Identify which valves run together (e.g., zones 1 and 2). Disconnect zone 2's wire at the controller and run zone 1 manually. If zone 2 still activates, field wires are crossed—likely nicked during digging. Inspect wire paths where utilities crossed irrigation lines.

Valve vs. Wiring Fault

If a valve is stuck open from debris, it would run continuously regardless of controller state, unless a master valve is present. Check the controller for a wire on the Master Valve (MV) or Pump Start (PS) terminal to determine if a master valve exists.