| Display | Possible Cause | Solutions |
|---|---|---|
| DISPLAY SHOWS "ERR" WITH NUMBER | Short in field wiring, or bad solenoid. | Check field wiring and valve solenoid. Press any button to clear ERR message. |
| DISPLAY SHOWS P "ERR" | Short in Pump/Master Valve wiring or solenoid. | Check wiring and solenoid at PMV. Check specifications for Pump Start Relay. |
| DISPLAY SHOWS SP "ERR" | SmartPort error. Electrical noise is present near connection to remote or other SmartPort device. | Move connections away from sources of electrical noise. |
| DISPLAY SHOWS "NO AC" | There is no AC power to the controller. | Check fuse/breaker and incoming power supply to controller. |
| DISPLAY SHOWS WATERING BUT NO WATER IS OCCURRING | Problem in field wiring. Problem with solenoids. No water pressure to system. | Check field wiring (voltmeter). Check valve solenoid(s). Verify water source is open. |
| FROZEN OR GARBLED DISPLAY | Power surge | Reset controller. |
| RAIN SENSOR DOES NOT STOP IRRIGATION | Jumper wire is not removed. Sensor switch in BYPASS position. | Remove jumper wire on SEN terminals. Set sensor switch to Active position. |
| CONTROLLER SEEMS TO WATER CONTINUOUSLY | Too many start times. | One Start Time operates all stations in a program. Remove unnecessary start times. |
| E99 ERR | Internal circuit board issue with front panel. | Replace front panel. |
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