Cold air blowing

[Kr31]

I followed the directions to a T. My nest is set at 68-72° yet, I come home and it's blowing cold air and it's 57° in here. Help please!

 

[Houptee]

Do you have pic of the old tstat wiring?

Usually Blue is C but they might have used it for OB, but without seeing the original wiring no way to tell.

Did you set it up as a Heat Pump with forced air heat?

If you are getting air cind when you want heat you have to change the OB wire setting it has A or B so change it to the other setting and see if heat comes on.

Read this How to change the O/B settings

https://support.google.com/googlenest/answer/9257086?hl=en#zippy=%2Cchange-the-ob-wire-settings

Then after it is working properly you have to set the Heat Pump Balance setting

https://support.google.com/googlenest/answer/9248719

[Kr31]

Thank you!! Changing the o/b setting worked! (And I labeled the wires as they were in the old unit so they are in the correct place.)

[Markjosephp]

Hello folks,

Thanks for your expertise here, @Houptee. Big help!

@Kr31, I'm glad to hear that changing the orientation worked. But I wanted to chime in and ensure you are good to go. Please let us know if you have any other questions or concerns. Otherwise, this thread will be locked within 24 hours.

Regards,

Mark

[Kr31]

All good!

[Markjosephp]

Hi Kr31,

Awesome! It looks like we can consider this one complete, so I will lock the thread shortly. Feel free to create a new thread if you have any other concerns or questions.

Thanks,

Mark