I have a blue wire labeled 'T2' but Nest does not have an option for
this wire. Says my wiring is incompatible. What is this wire for? Is
there any way to connect this thermostat?
I installed the thermostat again using your suggested wiring diagram,
switching from Rh to Rc. For whatever reason, heating and cooling are
still reversed. I read online that when this happens, switching the O
wire setting to B will fix this, and it ...
i restarted installation on the nest app and this time selected R and
Rc, but the app still instructs me to use Rh. Also, to the question
asking if I have a heat pump, I answered 'don't know ' and based on my
o/b wire being white, it advised me to c...
I already purchased the learning thermostat. I installed it, and guessed
on the setup and tested it. For the heat tests, it only blew cool air. I
didn't try the heat tests, but when I exited testing, the thermostat
called for ac, but the heat came on...
Now the setup software is warning me that I must choose the proper
settings or I could ruin my heat pump AC unit. I don't know what
settings to select. At this point, I'm not even sure I have a heat pump.
My outdoor unit is a lennox xc21-048-239-02. ...
The issue is for the blue wire, I was looking at the wrong label for non
heat pump T2. Once I realized it was Y2 then I had no issue with the
installation. Thanks
