Troubleshooting Open And Shorted Valve Circuits; Open Circuits - Rain Bird ESP-MC Serie Manual De Operación

Rain Bird RASTER
5. Turn the Programming Dial from "OFF" to
"AUTO" (or any other dial position) at any time to
exit RASTER TM mode.
6. The controller returns to normal operation.
(Rapid Station Test Routine),
TM
continued
Troubleshooting Open and
Shorted Valve Circuits

Open Circuits

When the RASTER TM shows an "OPEN" valve circuit,
it indicates a complete break in the current flow
between the controller and the valve.
NOTE: The RASTER TM will display an "OPEN"
indicator if no valve solenoid is connected to the
controller station. This is normal and the system
does not need service.
These are the most common causes of open circuits:
• A malfunctioning valve solenoid
• Field wires that have been cut or pulled loose
• Loose wire connections on the controller's
terminal strip or at the valve solenoid
• A damaged component on the controller's
internal circuit board
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