I own 7 of the LZW36 Light/Fan switches. I love them because they are one of the few smart single gang light+fan controllers available (or were available). Unfortunately, almost all of mine have suffered from the situation where the Canopy module loses the medium fan speed setting.
I recently saw that Inovelli now sells Zigbee & Matter Canopy modules that can bind with wall switches. What would be fantastic for all of us LZW36 owners out there, would be if you created a ZWave/Red version of the Canopy module and it could bind to the existing LZW36 wall switch. The module could totally stand on its own like the other Canopy modules, but also throw the LZW36 owners a lifeline.
Another possible roadblock might be that if updated firmware would be necessary for a LZW36 to work with a new fan module (association or whatever else), that wouldn’t be possible as Inovelli no longer has a relationship with that manufacturer.
I have no idea if that concern would even be applicable, but thought it may be worth mentioning.
The best that you can hope for is to buy the Zigbee canopy module and link the LZW36’s Z-Wave switch through your HA hub du jour.
Wait, I take that back. The real best thing would be if someone could take apart a failed LZW36 canopy module and determine what component fails to stop medium speed from working. If a replacement part can be sourced and installed with a hand soldering iron, it might be an interesting side hussle for someone…
I recall during early discussion to the product that the metering functionality writes to nvram. I mentioned that this will eventually wear out the memory component (since all NVRAMs in production today have a finite number of write cycles) but I didn’t get a clear answer.
I hope that Inovelli has a better grasp on hardware these days.