Nest Thermostat compatible?

[ERussell21]

Just trying to figure out if my current wiring is good to go with a nest thermostat or if I need to do something for the fact that it doesn't have the C wire. Thanks in advance!

[Patrick_Caezza]

Who is the manufacturer of your system?

Do you have a conventional system or a heat pump?

[ERussell21]

It's a Ducane furnace and I have a conventional system. The thermostat currently installed is a Honeywell.

[Patrick_Caezza]

You can use any of the Nest thermostats.

Give this wiring a try

Blue - B to C

Green - G to G

Yellow - Y to Y1 or Y

White - W to W1 or W

Red - R to Rc or R (jumper to RC not needed)

The "or" is for the Google Nest Thermostat

[MelbaDT]

Hey folks, 

Thanks again for your answer, Patrick_Caezza. 

ERussell21, is everything covered here? Feel free to let us know if you still have some questions in mind. 

Best, 

Melba

[MelbaDT]

Hey ERussell21, 

Checking back in should you have more questions about your thermostat. 

Best, 

Melba

[MelbaDT]

Hi, 

I haven't heard from you in a while so I'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best, 

Melba

[ERussell21]

Hi Melba—was still having issues so just replied to Patrick. Vents blow cold air when Nest is set to heat for some reason. 

[Ryan_G]

Hey ERussell21,

Thanks for being here in the Google Nest Community.

I'd like to jump in here and check if you're still having this issue on your Nest Thermostat. Let us know how it goes by replying to this thread.

Best regards,

Ryan

[ERussell21]

I am good to go, thanks! I ended up having to get the power connector but it did the trick.

[MelbaDT]

Hey there, 

Got it and thanks for getting back to us. We're glad to hear that you've got everything working as they should be. 

Feel free to reach out if something comes up. 

Cheers, 

Melba

[MelbaDT]

Hi, 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

Best, 

Melba

[ERussell21]

Hey Patrick—so I did that wiring and went through the whole setup. Power to the Nest seemed fine but when I set it to heat and cranked it, my vents were still blowing cold air. Not sure where to go from here.