Hunter Pro-C Zone 5 Not Running: Valve Solenoid or Diaphragm Issue

Zone 5 Time Counts but No Water Flows

When a Hunter Pro‑C shows run time for a zone but no water appears, the controller is sending the signal but the valve isn’t opening. The problem is almost always at the valve itself.

Likely Causes

• Bad solenoid: The coil fails to lift the plunger.
• Torn diaphragm: Water cannot build enough pressure to open the valve.

Repair Steps

1. Locate the valve box for zone 5.
2. Test the solenoid with a multimeter (20–60 Ω). Replace if out of range.
3. If the solenoid tests good, disassemble the valve and inspect the diaphragm. Replace if torn or deformed.
4. Reassemble and test the zone manually and in auto.

Refer to irrigationtutorials.com for detailed valve rebuild guides.