Old thermostat (about a year old) had batteries in it but when I took off wall, has a c wire. I installed the smart thermostat exactly how it states and it's not powering on. I have attached pictures from the old thermostat, the thermostat wires tracing back to the unit, and the new thermostat plate where the wires go. Where do I put the new wires on the plate to get this thing up and running?
thanks
Some smart stats want you to power RC and not R. Is it possible the furnace fuse tripped and no longer supplies 24V down the red R wire?