Hello, I have an issue when installing my nest. First I encountered the
unconfigured/undetected C wire. but also the thermostat is starting the
condenser unit and sending cool air when heat is selected. I’m attaching
picture of my old thermostat.
Thank you for this analysis. My condensers are xli15 trane and yes the
furnaces are 2 stages furnaces. But I haven’t set ut the thermostat as a
a heat pump. I even answered NO at this question during set up…I
stripped the blue wire and it is still un...
There is something weird…I never configured the system like this and it
always end up with these settings that I cannot change…additionally, my
secondary unit upstairs which is exactly the same doesn’t have the same
wirings, see screenshot please.
