Zooz water sensors: some connect to SmartThings Hub v3, some don't, not sure why

I have the Samsung SmartThings Hub v3.

I have installed 5 identical Z-wave devices from Zooz (Zooz 800 Series Z-Wave Long Range XS Water Leak Sensor ZSE42 800LR - The Smartest House). I have installed the Zooz custom Lua driver. Inexplicably, 2 of them work fine, but 3 of them do not finish setup and don’t work. Below is an image of what I see for the sensors that do not work.

I’ve tried waking the 3 sensors that don’t work (4-button push) up many times (~50 times in total), and excluding and re-including them multiple times (~10 times in total), always with the same result.

Zooz says that this is a SmartThings issue, as the devices work with all other hubs, and they only see this issue with SmartThings. Any suggestions for this issue?

Just the usual;

  • get the sensors close to the hub when excluding and pairing
  • Run a z-wave repair
  • Reboot the hub in the AWA (not power cycle)
  • Check the logs in CLI
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I have three Zooz water leak sensors in the basement. When installing them–prior to moving from SmartThings to a Z-Box Hub at that location–I experienced the same thing. Solution for me was to put a mains-powered device nearby the sensor to strengthen the mesh in that area. YMMV, of course, but perhaps worth a try?

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Thanks. I am already trying to include the very close to the hub, so that’s not the problem.

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Thanks for taking the time to reply:

  • I have already been excluding and including close to the hub (1 - 3 meters)
  • I’ve run Z-wave repair multiple times
  • I’ve rebooted the hub with the AWA (thanks, I didn’t know AWA existed)

Unfortunately, none of those steps helped.

  • Re: CLI, I installed it but it seems quite complex to use and understand its output. Not sure I can quite decipher it at this point.

Let me know if you have other ideas to try

I have two of these devices. At first they would not stay online for more than 24 hours. After working with Zooz we found that pairing using the Smarthings default driver worked fine. I deleted the Zooz driver, excluded, then repaired with the default driver. Both sensors have been stable since then.

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Thanks a lot. I just tried doing this and all 3 sensors started reporting “Dry” for the first time. I have to test them at home this evening with water, but this may be the key.

  • I had asked Zooz whether their driver could be the problem earlier, but they were adamant that it was a SmartThings problem…
  • I did call SmartThings support yesterday evening, and they said I had already done everything they would recommend doing, and that the sensors must be defective
  • All is well that ends (hopefully) well!

Just to confirm that I tested the sensors with water, and they respond properly.

So in summary, 2 of the sensors worked OK with the Zooz driver, but the other 3 identical sensors only worked with the default SmartThings driver.

I’ve let Zooz know, and they said they were looking into it.

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