2 Wire Install for Nest Learning Thermostat

[dj_rawmos]

I took off my old thermostat and found only 2 wires coming out of my wall, 1 green and 1 white. The green was connected to the B connector and the white connected to the W connector. A black wire was connected between the Rh and Rc connectors. Is my system compatible with the Nest Learning Thermostat? If so, where should I connect the wires from the wall into the Nest?

 

[laurentbourg]

Please provide the make and model of your current thermostat. 

[Whitejeff1]

Same issue 2 wires black and white connected to b and w with jumper from r to rc set up says I need r wire and can't get further 

[laurentbourg]

please post some info, pic of your old thermostat wired, pic of the Nest wire plate the way you wired it, and the make and model of your old thermostat. 

[dj_rawmos]

In my case, the person who wired my heating unit used the green wire as the red wire. I simply attached the green wire to the R connection. It worked but the heating unit would turn on and off after only running for a few minutes. I purchased and installed  the Google Nest Power Connector and everything is working just fine. 

Google Nest Power Connector -... https://www.amazon.com/dp/B093TRFQWP?ref=ppx_pop_mob_ap_share