More than 1 zone running during individual zone run

Schedules & Zones
1

I have 6 zones and zone 1 always runs with every other zone unintentionally. I have been unable to figure out why that is.

Any help is appreciated

2

Sounds like the zone 1’s valve might need to get rebuilt. Other possibilities, but usually not the case, something happened with wiring or the controller.

3

Thanks, I just watched a video on that and will give it a try as the valve is likely original to when the house was built and the system was installed.

4

I do not know what the video said, but it is usually easiest to get a new one (if it is still made) and just replace all the guts of the new into the old.

5

You are exactly right. The video recommended the same. I just hope I can find the same unit. It I have to cut it out to replace it will be much more time consuming.

6

Report back with how it works, but the diaphragms work of pressure on the front and back side to turn on/off. It it is failing, when a valve on the same line turns on, that quick drop in line pressure can cause the diaphragm to lose that negative pressure holding it closed, and will turn itself on.

7

So, I finally got around to replacing all 7 diaphragms, and there were a few that had seen better days or that just had a lot of grit in them. While testing, I still fail to get proper pressure for an individual zone as the one zone I mentioned continues to run on all zones even when disabled in the app. It is causing that area to get waterlogged. I can only guess it might be a wiring issue?

8

With it running with all zones, it seems like a valve problem instead of wiring. Maybe verify by disconnecting wires

9

Just to be clear, disconnect the valve wire at the diaphragm’s or controller?

Thanks

10

I would do that at the controller end instead of messing with the waterproof wire nuts.