Is my heat pump able to use Nest Thermostat, and how do I wire it?

[Spmarg]

We have a heat pump that's currently wired as: white-W2, orange-O/B, black-C, red-R, green-G, and yellow-Y.  Will this work with a Nest thermostat? When we connected and turned it on all we get is heat no A/C. We have tried the orange and the white wires in the W and O/B positions and only get heat.

Any help is greatly appreciated. 

[zoeuvre]

Hi Spmarg,

Thanks for reaching out to us, and I'm sorry to hear about the situation. Let's sort this out.  

Please send us a photo of your old thermostat's wiring configuration and a photo of how you connected the thermostat wires to the Nest Thermostat base. It will help us identify the cause of the situation and move forward.

Best,

Zoe

[zoeuvre]

Hi there,

I want to check and see if you are still in need of any help. Please let me know, as I would be happy to assist and answer any questions you may have.
 

Thanks,

Zoe 

[Spmarg]

here are pictures of original and Nest wiring and product box. I see where you are supposed to choose either O orB, but I don't find that option in Nest. 

 

but I don't see that option on the Nest

 

 

[zoeuvre]

Hello Spmarg, 

Thanks for getting back to us. I checked your thermostat wires and how you connected them to the Nest Thermostat, and I found that the Nest Thermostat you have is the Nest Thermostat 2020, which is not compatible with your thermostat wires but is compatible with the Nest Learning Thermostat 3rd generation. Therefore, you should be wired your thermostat wires to the Nest Learning Thermostat 3rd generation base as follows:

• Yellow wire to Y1
• White wire to W2 Aux
• Green wire to G
• Black wire to C
• Orange wire to OB
• Red wire to RH

Also, here's a guide for the installation and setup of the Nest Learning Thermostat 3rd generation. 

Let us know if you have any other questions. We're happy to help. 

Best,

Zoe 

[zoeuvre]

Hi there,

I want to check and see if you are still in need of any help. Please let me know, as I would be happy to assist and answer any questions you may have.

Thanks,

Zoe

[Spmarg]

No, I do not need anymore help. I will return the Google Nest as it is not compatible with my heat pump system.

[zoeuvre]

Hey Spmarg, 

We're sad to see you go. We're always here to help if you ever change your mind. If you run into any more questions in the future, please feel free to create a new thread.

Regards,

Zoe