Z-Wave Dimmer switch not found by SMartThings problem

[JDRoberts]

I’m sure that’s very frustrating. The fact that the LED blinked a different color than you were expecting indicates that you haven’t quite hit the pattern that the device wants.

You’ll need to start by doing a general exclude. Note the following, as several people have reported issues with the new Leviton zwave plus devices, and it seems like the pattern has changed somewhat:

Problem with Z Wave Plus not updating status?

hi I wanted to reply to this thread as I had the same issue with a number of brand new leviton zwave plus switches - the key is not just to follow the instructions to exclude, which I did 10 times, on the newer ones you need to KEEP holding the paddle up for quite a bit longer before you will see a series of red flashes, this seems to be a “real” factory reset, this fixed all my issues once I re-added the device. and yes on both the zwave and zwave plus leviton switches I have (DZS15 and DSZ15s) there is a 1-10 second delay to register the status to the hub when when physically pressing the switch - you get used to it

https://support.smartthings.com/hc/en-us/articles/200878314-How-to-exclude-Z-Wave-devices

After you get it successfully excluded, follow the instructions to include it again.

If it doesn’t work, or again you see the wrong color LED, contact either Leviton support or SmartThings support.