I'm trying to replace a Honeywell Chronotherm III that has the following
wires: R,Y,G,W,O,BWhen I wired it to nest routing B to C the system only
blew cool air. I have two zones in the house. Does that mean it's
incompatible?
R -> RY-> YG->GW->WO->OB*B-CIt blew cold air. I changed the app setting
as to which wire was the heat pump but it was still cold air. Put back
on old thermostat and it worked fine again.
