Replacing zwave devices how does that affect other devices

Lets say you have a hub, device #1 (close to hub) and device #2 (far from hub). Device 2 (far from hub) is only connected to the zwave network thru device #1 because the hub or any other device is not within its range.
Now you replace device 1 (close to hub). You join device 1 to the network no problem. What happens to device 2? It was only connected via old device 1 and that device is now gone (replaced).
Q1: Do zwave plus devices automatically rebuild their connections after a certain amount of time?
Q2: I read that only AC powered devices repeat z wave. Is that correct?

Nothing bad happens. It will now use the new device instead of the old one. :sunglasses:

Device 2 was never actually “connected” to device one – – instead it had an entry in its address table that device 1 was a good one to use when trying to forward its messages around the network.

Since the new device 1 has the same address as the old device 1, device two will now try to use it as a repeater. But if that fails, it will just try some other route.

Yes, although if you want to speed up the process you can use the Z wave repair utility.

Q2: I read that only {zwave} AC powered devices repeat z wave. Is that correct?

Yes. See the FAQ in the community – created wiki:

https://thingsthataresmart.wiki/index.php?title=Is_this_device_a_repeater%3F

1 Like