Well I thought for the longest time that the used chime (at A8) that I bought on eBay was thermal as it would work most of the time but every so often it would quit responding to it's address and replugging it would result in the familiar power up chime, but it would not solve the problem. Only leaving it unplugged for 1/2 hour or longer would bring it back to receiving PLC commands. Furthermore, it would do this no matter where I plugged it in, no matter what else was on or off, no particular time of day. I even reflowed nearly all the solder in it but nothing I did would solve it.
Today I received a brand new chime and in about an hour it did the same thing.
When it fails it won't chime when I attempt to fire it off with any device on the A house code which is trancieved by a TM751 on the same floor. The TM751 is in charge of the A network which is upstairs in the living area flawlessly controlling lamp and appliance controllers at A 1,2,3,4,5,6,7,(8?),9,10.
So, I swapped codes with the fireplace at A6 and the chime that was just not responding to trancieved A8 worked at A6 and the fireplace on an appliance controller at A8 stopped working!
But why?
So I opened up active home to watch A8 and could see it being put on the power line. The CM15a is told
not to trancieve the A network. Then I noticed something. When A8 would show up in the activity monitor I could see the AHP fireplace module at A8 going on and off graphically, but the fireplace was not responding to that. HOWEVER, if I took my mouse and switched the fireplace switch that was just toggling in response to PLC commands, then the fireplace came on and went off at I toggled it.
AS THOUGH: The A8 from the tm751 sometimes does not work at the module level (edge of the network) even though AHP can see the traffic. BUT the CM15a down in the basement can put A8 on the powerline and it works up here.
I can do without A8, but I just want to know why this might be. As it's likely that this will bite me again someday.
I have a macro that is triggered by A8 (now it has been moved to A6) but I don't understand why that might be an issue.
I'm sorry this was so long, I hope I was thorough.
Thanks in advance,
:Ron