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Nest compatibility

TMW
Community Member

28474B4A-272F-419D-AAC3-F6E10ACDB8E4.jpeg

I do not have a C wire on my current thermostat but I do have a R wire connected.  I also have a nest installed upstairs ( one system two zones) and it works fine.  I want to get another nest for downstairs but as mentioned no c wire. Here’s a picture can anyone tell me if a nest will work downstairs?

 

6 REPLIES 6

Patrick_Caezza
Platinum Product Expert
Platinum Product Expert

The brown wire that is connected to the B terminal is your C wire.


To ensure that I see your reply, please tag me using @Patrick_Caezza

EdwardT
Community Specialist
Community Specialist

Hi folks,

 

@Patrick_Caezza, thanks for the help!

 

@TMW, how's it going with your Nest Thermostat? Still need our help?

 

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi TMW,

 

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

 

Thanks,

Edward

TMW
Community Member

Edward,

Thank you for following up and offering more help, I do appreciate it very much.

I ended up just sending back the standard Nest thermostat, because it kept falling offline, and I bought another Nest Learning Thermostat and this one is working great.

I also appreciate you confirming the brown wire was the “C” wire. I did check the controller for my system and I did see that the brown wire was landed on the “C” terminal for both Zones but wasn’t 100% certain is was the power wire until you confirmed it.  Now both thermostats have a “C” wire connected which is good.

Thanks again!

Todd

MelbaDT
Community Specialist
Community Specialist

Hey Todd, 

 

Thanks for keeping us in the loop and we're glad to hear that you now have a working Nest thermostat. Feel free to let us know if you have any further questions in mind. 

 

Cheers, 

Melba

Jake
Community Specialist
Community Specialist

Hey Todd, 


I wanted to check in with you, and let you know that I will be locking the thread in 24 hours.

 

Best regards,

Jake