Wiring configuration for Nest Thermo - heat pump runs but no heat?

[jls7332]

Heat Pump not staying on to heat up the home? Here is the original wiring diagram. Wiring configuration for Nest Thermo - heat pump runs but no heat? When I look at the wiring attachment on the program it states no W white wire attached even though it is. What does the white wire do?

 Heat Pump system original wiring. Nest Thermostat works except it doesn't

[EdwardT]

Hi jls7332,

Thanks for reaching out. I'm sorry to hear that you're having an issue with your Nest Thermostat. I'd love to know more about this and I have a few questions:

• How is your Nest Thermostat wired?
• When did the issue start?
• Are you getting any message?

You can also click on this link for some troubleshooting steps you could try.

Thanks,

Edward

[jls7332]

All 6 wires are attached to their respective posts. The problem is that the white wire doesn't show connected on the nest app / google app. It doesn't show emergency heat either as an option under 'equipment'. I would think the white wire was for the emergency heat option.

My wiring does look a little ragged so I'm going to recut them and retry it.

I'll let you know...thanks for your timely response.

[EdwardT]

Hi jls7332,

Thanks for the update. Let me know the results once you've tried to re-strip the wire. Keep us posted.

Thanks,

Edward

[EdwardT]

Hi jls7332,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do.

Thanks,

Edward

[jls7332]

Thnx. I'll give that a try.

[EdwardT]

Hi jls7332,

Thanks for the response. Let us know the results once you've tried the steps. Keep us posted.

Thanks,

Edward

[Jhonleanmel]

Hi folks,

Chiming in to see if you still need assistance with this. Let us know if you have additional questions ― we'd love to help.

Best,
Mel

[Jhonleanmel]

Hi everyone,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks,
Mel