An electrician called my cooling and heating nest learning thermostat a
split system it has the heating from the HVAC and it also has an air
handler in my attic. Goggle actually told me the power connector will
work on my system.
I’m having the same problem as you had. Does the power connector also
have to be connected to the air handler or can it only be connected to
the furnace. I have my Nest for both hear and air conditioner
