Nest Learning Thermostat 3rd Gen won’t control cooling

[Jota57]

 Nest won’t control heat pump cooling. Old Honeywell t-stat has a metal jumper between Y1 and W1. With yellow wire to Y1. White wire goes to W2. Cannot find the right wiring config on the Nest that will control cooling. Changed heat pump orientation with no impact. Still blowing warm air. How can I wire the nest when there is no W1 wire?

[EdwardT]

Hi Jota57,

Thanks for reaching out. The Nest Thermostat should be able to control your heating with the Y wire if it's configured with a heat pump system. I'd love to know more about this. Could you share a photo of how your Nest Thermostat is wired?

Looking forward to your response.

Thanks,

Edward

[Jota57]

Here is the current wiring configuration. I have tried the white wire in W1, but aux heat will not kick on unless the white wire is in W2. My issue is less about heat and more about the inability to get any cooling.

[EdwardT]

Hi Jota57,

Thanks for the response. We'd like to know more about this. Please fill out this form so we could investigate further.

Thanks,

Edward

[Ryan_G]

Hey Jota57,

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

Thank you for your help, Edward.

Regards,

Ryan 

[Jota57]

I did fill out the form and heard nothing back.

Jim

[EdwardT]

Hi Jota57,

Thanks for the update. For some reason, we didn't see your form. Could you please fill out the form again and include the link of this thread?

Thanks,

Edward

[EdwardT]

Hi Jota57,

We got your form — thanks for filling it out. Our team will reach out to you via email to further assist you. Please keep your lines open as they may reach out to you anytime soon. Also, please be advised that this thread will be locked after 24 hrs.

Thanks,

Edward