Hardie Timer "SHORT 15" Error: Solenoid or Wire Fault on Zone 15

Hardie (Irritrol) Rain Dial showing "SHORT 15" means zone 15's circuit is shorted—either the solenoid is internally shorted or the field wire is grounded.

Fix

1. Identify which valve is zone 15 (run manually, watch heads).
2. At that valve, unscrew solenoid (counterclockwise).
3. Install new solenoid (match brand/model). Two wires—polarity doesn't matter.
4. Test: run zone 15. "SHORT" gone? Done.

If Error Persists

• Disconnect zone 15 wire at controller.
• Run zone 15. Error? → Controller fault (rare).
• No error? → Field wire shorted to ground/common. Trace and repair.

Solenoid replacement is $15 and 5 minutes. Start there—it fixes 90% of "SHORT" errors.