Hunter X2 “2 ERR”: What It Means and How to Troubleshoot It
A Hunter X2 “2 ERR” message indicates an electrical fault on station 2. Isolate the station-2 circuit, inspect its wiring and connections, and check the valve solenoid.
Start with the most diagnostic clue.
A Hunter X2 “2 ERR” message indicates an electrical fault on station 2. Isolate the station-2 circuit, inspect its wiring and connections, and check the valve solenoid.
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What “2 ERR” Means on a Hunter X2
On a Hunter X2, “2 ERR” means the controller has detected an electrical fault on station 2. It is a station-fault message, not a programming or watering-schedule error.
Direct answer: Hunter identifies a short in the station wiring or a bad valve solenoid as likely causes. To isolate the problem, switch off power before moving the station-2 wire to a known-working terminal. Restore power only for the test, then manually start that station from the controller. If the error follows the wire, the fault is downstream of the original controller terminal, but this test does not distinguish the wiring, connections, and solenoid without further testing.
Likely Causes of the Station 2 Error
Hunter identifies two likely causes for a numbered X2 ERR message:
- A short in the field wiring for station 2.
- A bad valve solenoid on station 2.
Check the station-2 wiring and its connections. If the connections check out, the solenoid remains a possibility requiring further testing or replacement.
How to Isolate the Station 2 Fault
- At the X2 controller, move the wire currently connected to the station-2 terminal to a station terminal that is known to work.
- Manually start the station from the controller.
- See whether the fault follows the station-2 wire to the new terminal.
If the fault follows the wire, the issue is in the station-2 zone circuit - its wire, connections, or solenoid - rather than the original controller terminal.
Clear the Error After Repair
After correcting the fault, press any button on the X2 to clear the displayed ERR message.
Run X2 Quick Check for Other Wiring Faults
According to the Hunter X2 manual and official support documentation, the X2 Quick Check feature checks all stations for wiring problems. Press the +, −, left-arrow, and right-arrow buttons together, then press + to start Quick Check.
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