I have a heating relay (a Hortsmann Channel Boiler Actuator (SSR303 / ASR-ZW)) which usually works fine to turn my heating on and off. It is a mains-powered device (ie no batteries). However, now and then it fails to respond to Indigo's request to switch on.....the log shows
send "CH Relay" mode change to heat failed
and a quick look on the Indigo UI shows it as not responding with an Ack.
I thought that mains-powered ZWave devices would not "time-out" like this, as they have no batteries to conserve. Am I incorrect?