I have a six zone system, using the Hydro Rain HR6100 from Hardie Irrigation. I believe the system is at least 15 years old?? I recently moved into this home. When I turned on my system - zone 4 would stay on continuously. Thinking there was a problem with this particular valve, I rewired my valves, ie., removing the two zone 4 wires from the group of wires that were taped together. Zone 4 is now disconnected. I turned the system back on and the problem has moved to zone 5. Now zone 5 doesn't st...
