Hunter X-Core: System Won't Activate, Water Pressure Present But No Flow

New homeowner with Hunter X-Core system. Can't get system to run manually or automatically. Water pressure reaches "the ends" but valves seem closed. Brief spit stream when cycling water supply, then nothing.

Check for Master Valve

Many systems have a master valve near the main supply that must open before zone valves get pressure. Check controller:

• Is a wire connected to MV (Master Valve) terminal?
• If yes, locate that valve - it's likely stuck closed or failed
• Repair or replace master valve first

If No Master Valve or It's Working

Test individual valves manually:

1. Go to each valve box
2. Turn solenoid ¼ turn counterclockwise (or use bleed screw)
3. If zone activates → Valve works, problem is electrical (controller/wiring)
4. If zone doesn't activate → Diaphragm failed, replace it

Electrical Diagnosis

If valves work manually but not from controller:

• Test controller output voltage (22-26 VAC at zone terminal vs Common)
• If no voltage → Controller or transformer issue
• If voltage at controller but not at valve → Wiring break

More details (number of zones, valve types, master valve presence) would help narrow the diagnosis.