Slow responsiveness with Matter binding between Smart Dimmer and Fan Canopy (White)

Product Support
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1

I recently installed White Series Fan Canopy VTM36 (1.0.0 firmware) with a White Series Dimmer VTM31-SN (1.0.5 firmware). Since Home Assistant now supports Matter bindings, I installed Matter Binding Helper (GitHub - cedricziel/ha-matter-binding-helper: A binding helper for matter) and set up the bindings between the Dimmer and Canopy. Here’s my binding setup:

Screenshot 2025-12-30 at 1.18.00 PM
Screenshot 2025-12-30 at 1.18.00 PM577×469 30.7 KB

(I called my dimmer “Switch” for this room.)

The dimmer is in Dimmer+Single mode with Smart Bulb Enable mode. It is wired as per the diagram “Single Pole (W/Neutral Wire) Canopy Module Installation With An Inovelli Smart Switch” (power at switch) in the wiring docs.

As shown above, I have the paddles bound to the light endpoints on the canopy (I want to use the dimmer as I would a good-old dumb dimmer). It works as expected to power on/of and dim the lights, except…

If the canopy hasn’t had any commands in a while, it takes several seconds for it to start responding to the dimmer. I can power on, power off, dim up and down and see the dimmer status LED showing the changes, but there is no response at the canopy for several seconds. It’s almost as if the server code in the canopy module is asleep and has to wake up, and it takes it a very long time to do so. If I send a Matter command prior via either Home Assistant or Apple Home, it seems to wake up the canopy and it responds immediately to the dimmer.

Are we still in a state where the canopy and/or switch really don’t fully support Matter binding yet, or is something else amiss? Has anyone else had any similar (or contradictory!) experience? Am I missing something/misconfigured something?

2

For a comparison, I tried binding some other Smart Dimmers in my kitchen, and the same thing is happening. I have one main dimmer bound to two others, and when first set up they worked flawlessly. After getting up this morning (and after my morning automation had already turned on the lights), the paddles only controlled the main light. After quite a bit of time (unsure of exactly how long, but about 30-60 seconds), the dimmers all started working together, though their states were out of sync at first. It’s like whatever code that runs to make binding work has to “wake up.”