Wire compability check

[RenatoVillard]

Wire compability check if I can install a nest 4th gen thermostat?

[CoolingWizard]

@RenatoVillard ,

please upload a picture of your old thermostat baseplate so I can see the wires attached and thier insulation colors.  

The Cooling Wizard

[RenatoVillard]

The system let me not upload the pictures?!

[RenatoVillard]

 

[RenatoVillard]

 

[CoolingWizard · Accepted solution]

@RenatoVillard ,

You will have no problem replacing the old thermostat with a Nest. The blue wire on B is your Common. 

The Cooling Wizard

[RenatoVillard]

Thank you very much 😀