Operation Manual

23
TROUBLESHOOTING GUIDE ..................................................................................................
PROBLEM CAUSES SOLUTIONS
Display indicates watering
but none is occurring.
Faulty or miswired valve.
Faulty pump or pump relay.
No water pressure to system.
Check valve and valve wiring.
Check pump and pump relay. Replace if defective.
Turn on main system water supply.
Display is blank.
No AC power reaching controller. Verify AC power and wiring. Correct any errors.
Display is blank with AC power to terminal
and with a new battery.
Controller may be damaged by
power surge.
Call your dealer or Hunter installer.
Time of day display is blinking.
Unit has just been powered up for the first time.
Extended power outage has occurred that has
drained backup battery.
Set time/date.
Replace battery and reprogram controller.
Valve will not turn on.
Short in wire connections.
Bad solenoid
Check wiring for short or faulty wire connections
Replace solenoid.
Display shows “ERR” with a number (1-6).
Short in valve wiring circuit; or a faulty solenoid on
the station number indicated.
Check wire circuit or solenoid for the valve number
indicated. Repair short or replace solenoid. Press
any button to clear “ERR” display.
Display shows “P ERR”.
Faulty pump relay or master valve wiring.
Incompatible or defective pump relay.
Check wiring to relay or master valve solenoid.
Press any button to clear "P ERR" from the display.
Check eletrical specifications of pump relay.
Replace if defective.