Master error “open circuit”

Neil Lucey
Updated at 2023-04-24 14:09:12 UTC
Topic: Troubleshooting

I swapped out a Hunter ProC controller with a Netro Spark 16 zone controller  The zones all work fine, but the pressure is now too low   When I ran a valve test all of the zones were normal but I had an error message for the Master that says “open circuit”   Not sure what it means or how to resolve it   I checked the wiring connections and they seem fine. Has anyone else run into this ? Thanks 


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