yes, my aqua hot is running with no lights other than the normal ones. my front thermostat is working and i get heat from that one.
i did reset the 5 button t-stat several times last night...sometimes i got the FF code and a few times the display came on and so did the heat. but, it didn't last very long (less than 3-4 minutes). I reset again, got FF then EE. let it sit. pulled the telephone looking connection, retried the reset a few more times until it worked.
this morning it seems ok, but i'm hesitant that it won't happen again....
just one more piece of info-----i've only been using zone 1 & 2...we're in montana (temps in the teens and/or 20's). we're living in the coach inside an unheated, partially insulated garage while we work on completing the build. winter came on very early and very furious....we're about 1 to 2 weeks away from getting all the heat done inside the building and hoping we can stay here to do that. i don't use zone3 because it intermittently works (we think it's a sticky valve???) but haven't wanted to mess with it for fear of something going wrong and then we'd have no heat... montana is fairly remote and getting service now is impossible. .i say all this to explain how we got in this situation (not normal for us) and to see if the third zone may have anything to do with our issue....
thanks for listening and for any help!