Hunter Pro-C Zones 1 & 2 Won't Run Automatically – Solenoid Testing Guide

Front yard zones (1 & 2) work manually but not via timer on a Hunter Pro-C.

Checklist

1. Verify each zone has run time, water days, start times.
2. Inspect wire connections at controller and valves—re-splice with waterproof nuts.
3. Test solenoid resistance with volt/ohm meter:

• At controller: Common to zone terminal: 25–60 ohms.
• At valve: Across solenoid wires: 25–50 ohms.

Solenoid Replacement

1. Shut off water; relieve pressure.
2. Unscrew solenoid counterclockwise.
3. Watch for plunger/spring.
4. Replace with exact same brand/model.
5. Use waterproof wire nuts.

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