Hi,
I am using 5 Danfoss TRV’s with ZHA, but they are not behaving consistently. Sometimes one just doesn’t respond to commands, whatever the command is, ZHA times out waiting for a response. Removing the batteries to restart it, sometimes solves it, but not always. And even more annoying, sometimes it just starts working after some time. And it is not always the same one and it happens to all of them over time.
I have multiple other Zigbee devices in the same rooms (both mains and battery powered) and multiple routers and they work just fine.
I come from Domoticz and Zigbee2MQTT. ZHA and HA work better for most Zigbee devices and also a little better for the TRV’s, but they just behave unreliably.
My wife is getting annoyed (and cold) with it not working smoothly and suggests going back to manual valves 
The Zigbee network itself seems stable and ZHA is using the quirks for the TRV’s.
Any suggestions what can I check/do/change to get them to work smoothly?