Trying to install the Nest Thermostat. I have a PEK wire which is not
being used, or should it be?Here are old wiring pics (Ecobee) and Nest
(round) current wired pics, which only gives me a heating option...Help!
Thanks for the replies. I found another thread here that had the
solution. The PEK is connecgted to the Y as indicated on the other post.
I had to do a factory reset and during the new setup, say I had a Y
wire, and then the setup worked perfectly. T...
