Wiring

[CH714]

Not sure what to do with the black wire on the new nest thermostat. 

 

[CoolingWizard]

Your system has 2-stage heating (W and W2). It looks like the black wire is on W and the white wire is on W2. The black wire will go to W1/Aux, and the white wire will go to W2. 

[CH714]

Tried that and the unit will still not put cool air out. 🤷🏻‍♀️

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and make sure that you’ve seen our response.

Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Have a great day.

Best regards,

Ryan

[RodaTrollope]

Hey thanks for the super helpful reply. I'm not sure how I missed that thread. I haven't quite mastered the search function on here. I think I'll pass with him this time around. If i want any further guideline we will contact you here https://www.googlenestcommunity.com/t5/Nest-lunchtime-Thermostats/Wiring/td-p/170386

[Patrick_Caezza]

Do you have a heat pump or a conventional system? If you are not sure you can look at the terminal block on the control board in the furnace/air handler and see where the black wire is connected.

If it is connected to the W terminal then you have a conventional system, if it's connected to the O, B, or O/B terminal it is a heat pump.

[Jake]

Hey CH714,

Sorry for the late reply. I wanted to follow up and see I could be of any help. Do you mind me asking if you are still having trouble with your system not cooling? I did find an article with some troubleshooting steps that could help resolve the issue you are having. Let me know if that helps, or if you have any questions from here.

Best regards,
Jake

[Ryan_G]

Hey CH714,

I'd like to jump in here and check if you've seen William's response. Let us know if you need more help by replying to this thread.

Thank you for your help, William.

Regards,

Ryan