Emerson Sensi (ST55U) to Nest Leaning Thermostat

[fdachtyl]

Hello,

I am looking to install a Nest Learning Thermostat in place of our existing Emerson Sensi. Attached is a phot of the existing wiring.

Looking to confirm:

Red Wire: RH to Nest RH

Blue Wire: Y to Nest ?

Green Wire: G to Nest G

Red Wire: W/E to Nest ?

Looking to add photos but currently get error "you do not have permission to upload images" when I try to add them...

[zoeuvre]

Hi fdachtyl, 

Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats. Are you located in North America or Europe? Do you have emergency heat? And where is the blue wire connected to your Emerson Sensi thermostat? Please send us a photo of your current thermostat wiring configuration by uploading the photo to your Google Photos or Google Drive, copying the link, and then sending it here in this thread. Make sure to allow access to anyone with the link so I can take a closer look at it. Also, you may use our Compatibility Checker to determine if a Nest thermostat is compatible with your heating and cooling system.
 

Keep us posted. 

Best,

Zoe

[fdachtyl]

Hi Zoe - I was able to contact an HVAC technician to determine our blue wiring was miss-colored and should have been yellow for the A/C system. The Nest is now hooked up and working as expected. 

[zoeuvre]

Hi there, 

Awesome! I'm glad that everything has been sorted out. If you have questions or concerns in the future, feel free to start a new thread, and we'll be happy to help.

Regards,

Zoe