I am replacing my original thermostat with a Nest Learning Thermostat.
My original thermostat has six wires. The four standard white, red, yellow and green.
I have a brown wire in to the ‘W2’ terminal and also a dark blue wire in to the ‘B’ terminal.
Into which terminal on the Nest Learning thermostat should this dark blue wire be inserted?
l have photo if this will help.
thanks-
