Hardie 476 PRI '9 FUS' Error: Identify and Replace Faulty Solenoid

Hardie 476 PRI Shows "9 FUS"; Breaker Reset and Battery Reseat Didn't Help

1. Remove battery, disconnect AC power for 1 minute.
2. Power up without battery.
3. Manually activate each station one by one. The station that triggers "FUS" has the shorted solenoid.
4. Locate that valve (in a yard valve box), replace its solenoid (unscrew old, screw new, reconnect wires).

Valve location may require a wire tracer if boxes are buried.