Hardie Controller Shows Short on All Stations—Solenoid Testing

Hardie controller shows short on every programmed station (8 of 18). No master valve.

Testing Procedure

1. Disconnect EACH solenoid from its two wires
2. Multimeter on 200 Ohms
3. Measure each solenoid: 20-60 Ohms = good
4. <20 Ohms = short (replace)
5. >60 Ohms = open (replace)

Why All Show Short

One shorted solenoid can make controller report all stations shorted. Test individually.