Second HAOS instance, no Z-wave sidebar entry | Home Assistant | Page 1

lapis fossil Feb 5, 2026, 10:34 PM

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I'm going in circles trying to figure out what I've done or why my two HAOS instances are different. In my "old" setup I have an entry in the left sidebar in home assistant that says "Z-Wave JS". In my Settings > Integrations I have "Z-Wave" (i.e., not Z-Wave JS)

In my new HAOS instance I just setup Z-wave following this guide: https://www.home-assistant.io/integrations/zwave_js
After going through the setup I do not have the same "Z-Wave JS" sidebar, even though I apparently have the same Integration installed:

I'm also thoroughly confused by Z-Wave JS and Z-Wave JS UI - maybe I've install both? I can't tell.

Home Assistant

Z-Wave

Instructions on how to integrate Z-Wave with Home Assistant via Z-Wave JS.

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"Old" HAOS does indeed have the JS UI installed

jagged valley Feb 5, 2026, 10:36 PM

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The sidebar is for the Z-Wave JS UI app (add-on)

lapis fossil Feb 5, 2026, 10:36 PM

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Yeah, just found that. I'm confused by the z-wave components

jagged valley Feb 5, 2026, 10:36 PM

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The UI for the Z-Wave JS core app is.. Home Assistant (for now)

lapis fossil Feb 5, 2026, 10:37 PM

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What's the current best practice? Use JS UI App or no?

jagged valley Feb 5, 2026, 10:37 PM

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It's your preference

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But, it's possible they'll become the same in the near future

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So you may just get UI for free one day

lapis fossil Feb 5, 2026, 10:38 PM

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OK, thanks. I setup my other machine years ago and don't remember why I installed the JS UI app, but apparently I did. I'll read up on it and try to determine what value it provides

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I imagine z-wave is still useable without it

jagged valley Feb 5, 2026, 10:38 PM

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Some items listed here: https://community.home-assistant.io/t/switching-z-wave-js-addons-with-minimal-downtime-z-wave-js-official-to-z-wave-js-ui-community/409904#p-1836792-who-is-this-guide-for-2

#Second HAOS instance, no Z-wave sidebar entry