Hunter Technical Support Document

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X-Core Troubleshooting Guide

Topics: 
Troubleshooting

Problem

The controller is continuously watering

Cause

Too many start times have been programmed

Solution

Only one start time is necessary to activate a program

Problem

There is no display

Cause

Check AC power wiring

Solution

Correct any errors

Problem

The display reads "No AC"

Cause

There is no AC power present
(the controller is not receiving any power)

Solution

Check to see if the transformer is properly installed

Problem

Display reads "Off, "

Cause

The rain sensor is interrupting irrigation or the sensor jumper has been removed

Solution

Slide the rain sensor bypass switch to the BYPASS position to bypass the rain sensor circuit, or reinstall the jumper

Problem

Rain sensor will not shut off the system

Cause

  • Defective rain sensor
  • Jumper was not removed when sensor was installed
  • Stations have been programmed to override the sensor

Solution

  • Verify operation of rain sensor and proper wiring
  • Remove jumper from the sensor terminals
  • Reprogram the sensor override to enable the sensor

Problem

Frozen display, or showing incorrect information

Cause

Power surge

Solution

Reset the controller

Problem

Display shows "ERR" with a number (1 to 8)

Cause

Short in valve wiring circuit, or faulty solenoid on the station number indicated

Solution

Check wire circuit or solenoid for the valve number indicated - Repair short or replace solenoid. Press any button to clear the "ERR" from the display

Problem

Display shows a station is running but the and icons are flashing

Cause

The sensor is interrupting irrigation, however the station has been programmed to override the sensor

Solution

Check the sensor override status

Problem

Automatic irrigation does not start at the start time and controller is not in the System Off mode

  • AM/PM of time of day not set correctly
  • AM/PM of start time not set correctly
  • Start Time is disabled (set for Off)
  • Controller is not receiving AC power
  • Correct AM/PM of time of day
  • Correct AM/PM of start time
  • See Setting Program Start Times
  • Check AC power connections

Problem

The display shows dashes when the dial is in the Solar Sync Settings position

Cause

  • The Solar Sync sensor is not connected to the controller
  • The Solar Sync sensor wires may have a break in them or a bad connection

Solution

Connect the Solar Sync to the "SEN" positions on the wiring terminal - The display will then show the Region and Water Adjustment setting

Problem

Run times for a particular station are too short/too long when using a Solar Sync sensor

Cause

Program Run Time too long/short

Solution

Solar Sync provides a global seasonal adjustment to the controller - If a particular station has run times too long or too short, make the appropriate adjustment to the program in the controller - Make sure to change seasonal adjust back to 100% before making changes to program run times - Do this by turning the dial to the Seasonal Adjust position and increasing/decreasing the value to 100%

Problem

Seasonal Adjust seems low

Cause

  • Region too high
  • Water Adjustment too low
  • Location of Sensor does not allow for full sun

Solution

Increase the value on the Water Adjustment scale (the default setting is 5) - If you max out on the Water Adjustment scale at 10 and still require more seasonal adjustment, move down one Region (from 4 to 3, for example) and start at Water Adjustment setting 5 - Solar Sync will immediately update the Seasonal Adjust on the controller - If it is still too high, repeat the adjustment until the desired seasonal adjust is showing on the controller

Problem

Seasonal Adjust seems high

Cause

  • Region too low
  • Water Adjustment setting too high

Solution

Decrease the value of the Water Adjustment setting. If you minimize the Water Adjustment scale at 1 and still require reduced seasonal adjustment, move up one Region (from 2 to 3, for example) and start at Water Adjustment setting 5 - Solar Sync will immediately update the Seasonal Adjust on the Controller - If it is still too high, repeat the adjustment until the desired seasonal adjust is showing on the controller

Problem

Solar Sync still sending Seasonal Adjust when Controller Bypass switch is in the "Bypass" position

Cause

Solar Sync’s automated Seasonal Adjustment cannot be de-activated by the Bypass switch. The Bypass switch only controls the Rain/Freeze shutoff function of the Solar Sync

 

Problem

After removing the Solar Sync sensor from the controller, the seasonal adjust value cannot be changed manually

Cause

The Solar Sync sensor needs to be uninstalled if permanently removing it from the controller

Solution

After removing the Solar Sync sensor from the controller, turn the knob to Solar Sync Settings. The screen should show dashed lines - The sensor is now uninstalled

Problem

Display shows “no SS”

Cause

  • Solar Sync sensor has been disconnected from controller but not uninstalled
  • Wiring connection from Solar Sync connection is faulty

Solution

  • Check Solar Sync sensor wiring connection to controller
  • Uninstall Solar Sync sensor if intent is to permanently remove sensor from controller

Problem

Display shows "P ERR"

Cause

  • Faulty pump relay or master valve wiring
  • Incompatible or defective relay or solenoid
  • Under sized wire to the pump relay or master valve

Solution

  • Check wiring to relay or master valve solenoid. Press any button to clear the "P ERR" from the display
  • Check electrical specification for the pump relay - Do not exceed controller's electrical rating - Replace if defective
  • Replace wire with larger gauge wire
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