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Nest Wiring Issue - C wire and Rh Wire

SRichar
Community Member

Hello,

We've been running our nest thermostat for 2ish years now, and have just realized we wired it wrong. We had the C wire put into the heat pump location even though we have a central furnace. When I went to correct the issue and plug it into the C wire location, it suddenly says no Rh power but only when the C wire is in it's proper place. No error thrown when the C wire is in the heat pump wiring location. Should we be exploring there actually being no power to the Rh line or is there another issue?

10 REPLIES 10

Anonymous
Not applicable

Do you have a photo of C wire being put into the heat pump location when you did not get an error message?

The actual wiring or the equipment image in my app?

Anonymous
Not applicable

The actual wiring.

image.jpg

 here’s it wired with no error. 

SRichar
Community Member

We may have solved it ourselves. There's hookups for a wood burning stove on our property and we think the old homeowners had it wired in as a "heat pump". It appears as though when they took down the stove they did not remove the wiring, so it's not actually a C wire but instead the stove wire. Looks like we have some rewiring to do in our future!

Markjosephp
Community Specialist
Community Specialist

Hi all,

 

I wanted to ensure that everything was covered here.

 

Thanks for the assistance, @Anonymous.

 

@SRichar, I appreciate your effort in inspecting your system. How's your thermostat? Is it working now and not showing any wiring reports?

 

Please let us know if you still need help so we can assist you right away.

 

Best regards,

Mark

EdwardT
Community Specialist
Community Specialist

Hey SRichar,

 

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

 

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi SRichar,

 

I'm just checking in to 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 in 24 hours.

 

Thanks,

Edward

SRichar
Community Member

Thank you, everything is working as it should. Still not sure why it gave the error it did, saying that the Rh wire sometimes has power. But in the end it doesn’t affect use. 

EdwardT
Community Specialist
Community Specialist

Hi SRichar,

 

Thanks for the update. I'm glad to hear that everything is working fine. I will be locking this thread in 24 hours. Please feel free to create a new thread should you have some more questions or concerns in the near future and we'll be more than glad to help.

 

Thanks,

Edward