Basic Troubleshooting for Contollers and Sensors

Aditional Sensor Troubleshooting and manuals: hunterindustries

Problem	Cause	Solution
Display indicates irrigation but valve is off	Faulty or miss-wired valve Faulty pump or pump relay if used	Check valve and valve wiring (and valve common). Check pumps and pump relay. Replace if defective.
Display is blank	No AC power and no backup battery installed (or dead battery)	Verify AC power and wiring.
Time of day is blinking	Unit is initially powered up Extended power outage has occurred and built-in backup period has expired	Press any button Reprogram controller
Display reads "SENSOR RAIN OFF"	If you are not using a rain sensor: The jumper between the sensor terminal is missing or loose If you are using a rain sensor: the sensor has been activated by moisture or is stuck	Reconnect the jumper between the rain sensor terminals of the terminal block Verify operation of rain sensor. Replace if defective (reinstall jumper until new rain sensor is installed)