Irritrol Controller Error 1: Valve 1 Solenoid or Wiring Fault

Irritrol Controller Displays "Error 1"

"Error 1" indicates a short on station 1—either the solenoid is shorted or the field wires are touching.

Checks

1. Inspect controller terminal 1 wiring for loose strands or corrosion.
2. Trace the zone 1 field wire for damage, nicks, or splices contacting ground.
3. If wiring is sound, replace the station 1 solenoid (~$8 at Home Depot).