12-28-2021 08:20 AM
I am looking to upgrade my current thermostat to a Google Nest and am checking for wire compatibility.
My current thermostat is a battery operated Honeywell DT90. When removed I have a circuit board
A x B y C
with a wire going into A and one into B. I also have a blue wired not wired into anything.
thanks for your help
12-28-2021 08:21 AM