Hunter Pro-C: Zone Runs Manually But Not Automatically

If a zone on your Hunter Pro-C runs in manual/test mode but not in auto, the issue is usually missing run time in the program — even if you think it's set.

First Check: Station Run Time

1. Turn dial to Set Station Run Time.
2. Use arrows to select the problematic station.
3. Press + to assign run time (e.g., 10 min).
4. Repeat for all stations in the program.

Stations with 0 minutes run in manual but are skipped in auto.

If Run Time Is Set: Test Voltage & Solenoid

1. Run zone in auto mode.
2. Measure voltage at controller: zone terminal to common → should be 24–30 VAC.
3. If voltage OK, measure solenoid resistance (ohms, 200 scale): red lead on zone port, black on common → 20–60 ohms.
4. Outside 20–60 ohms → replace solenoid.

Pro Tip

Quick Check test only verifies electrical continuity — it doesn't confirm programmed run times. Always verify run times in each program.