Post-Pipe Repair: System Shows On But No Water—Wire Damage Likely

Main pipe broke, repaired. Now controller shows "on" but no water to stations. Power cycled—no change.

Likely Cause

Field wires damaged during pipe repair. Wires often run alongside mainline.

Diagnostic Steps

1. Inspect repair area for cut/nicked wires
2. Check valve boxes for debris/dirt blocking valves
3. Test controller voltage at valve terminals (22-26VAC)
4. Clean valves if debris found (irrigationtutorials.com guide)

Controller Test

Multimeter: negative on COM, positive on active station terminal. Should read 22-26VAC.