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Saturday, May 23rd 2015, 11:13am

Multiple Valves Opening at same time

It appears I have three valves opening at once. I have 9 zones. Zone 1, 7 & 8 open together when any of the three are activated. I have Hunter Pro C; thought it might be bad modules. No, I hooked up my old Rain Bird (8 zones) and the same behavior. I can open each valve manually and they flow as expected. Could it be BVB - bad valve behavior? Any help would be appreciated.



Posts: 2,319

Location: USA


Saturday, May 23rd 2015, 3:39pm

There's a good chance it's the wiring. You can disconnect zone 7 and 8 wires then turn on number 1. Now check the voltage of the disconnected wires. Is the signal going down number 1 and coming back into the controller on 7 and 8?

Look for bare wires that are touching. I had this exact issue yesterday. Where the wires exited the garage they were bare from what I assume was a weed eater. A lot of times it will be from wires sitting in the sun.

It could be they're hooked up wrong at the valves. Sometimes a gardener will accidently disconnect the wires somehow and just hook them all back up together.

Did you do any digging recently where you may have nicked the cable?

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