43ESP-LX+ & LXi+ Installation, Programming, & Operation Guide
Open Circuits
An OPEN condition reported by the RASTER indicates a
complete break in the current flow between the controller and
the valve.
NOTE: The RASTER will display an OPEN condition if
no valve solenoid is connected to the controller
station. This is normal, and the system does not need
service.
Open circuits can be caused by:
• Malfunctioning valve solenoids
• Field wires that have been cut or pulled loose
• Loose wire connections on the controllers terminal strip or
at the valve solenoid
• Damaged components on the controllers internal circuit
board
Troubleshooting Open and Shorted Valve Circuits
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