interesting.
i have the same popp (danfoss clone) radiator TRV and found the driver (mentioned above) worked, albeit with a bit of nursing. Originally it took a bit of homework on my part as i was completely new to hubitat (i came here after my ten year old Vera died) and the default thermostat driver done everything except set the wake-up interval, which as you know, is essential in maintaining communication with the TRV
However, i had to set the wake-up interval (otherwise the device goes offline, as you know) by configuring in Hubitat then immediately forcing the TRV to wake-up by pressing the middle button on the TRV upon which it forces a "wake up" and collects the new configuration data awaiting.
Perhaps waiting for it to wake up on its own doesn't somehow collect the new wake-up parameter trying to be set by hubitat. Or maybe mine is also resetting to 1800 seconds wake-up?
BTW- 30min/1800seconds is my desired wake-up time.
There may be variations in these "danfoss clones" that cause issues, i dont know.
I have had a few issues following FW updates where hubitat loses the ability to deal with the device owing to a driver problem.
Have you experienced that yourself?
read about that here:
