topic Re: Nest not compatible in Nest Thermostats

Nest not compatible

junoh2 — Tue, 07 Feb 2023 15:24:28 GMT

I tried to replace my old thermostat with Nest. While checking the wires in my old thermostat, the app tells me mine is incompatible. It may be because mine has two zones with cables - W, Y, G, Rh, Rc, O. I hope someone can help if there is any way that I can install Nest.

Re: Nest not compatible

Patrick_Caezza — Thu, 09 Feb 2023 05:26:03 GMT

Can you post a picture of the original thermostat's wiring?

Which Nest Thermostat do you have?

Do you have multiple thermostats installed? Is there a zone controller installed?

Re: Nest not compatible

junoh2 — Thu, 09 Feb 2023 18:34:13 GMT

Yes, I have a zone controller. One upsiar is only to control upstair airflow. When the main one is off, the upstair one stops. I tried to insert an image, but I could not. Instead, I will describe as much as I could. The main thermostat has W, RH, B, O, W, G, and Rc from the top to the clockwise. All except Rc were connected by wires from the wall. In addition, a wire connects between Rc and Rh. The wire O looks like ground although I am not sure. Thank you.

Re: Nest not compatible

Markjosephp — Wed, 22 Mar 2023 20:54:31 GMT

Hello folks,

I wanted to stop by and see how I could help.

Thanks for the help here, @Patrick_Caezza.

@junoh2, If your current thermostat has jumper wires, do not connect them to your Nest Thermostat, as it doesn't require them. It's hard to tell how your thermostat is being labeled, but to be sure, do you have a heat pump system?

Regards,

Mark

Re: Nest not compatible

aatienza — Mon, 27 Mar 2023 03:02:53 GMT

Hey there,

I just wanted to follow up to see if you still need our help. Please let us know as we would be happy to answer any questions you may have.

I appreciate the help, Mark.

Thanks,
Archie

Re: Nest not compatible

Markjosephp — Tue, 28 Mar 2023 19:41:51 GMT

Hi junoh2,

It has been a few days since your last reply, and we're going to lock the thread within 24 hours. If you have any questions, please feel free to create a new post.

Regards,

Mark

Re: Nest not compatible

junoh2 — Tue, 28 Mar 2023 19:51:12 GMT

So... can I just ignore the O cable?

Re: Nest not compatible

Markjosephp — Tue, 28 Mar 2023 20:20:15 GMT

Hello junoh2,

If you don't have a heat pump system, leave it disconnected. Also, make sure to insert the wires into their appropriate terminals, including the B wire into the C terminal on the Nest Thermostat.

Please keep us posted on how the installation goes.

Regards,

Mark

Re: Nest not compatible

Juni — Sat, 01 Apr 2023 00:42:20 GMT

Hi there,

Buzzing in — I want to check if you have additional questions and concerns about your device. Let us know by updating this thread, and we're glad to assist you further.

Thanks,

Juni

Re: Nest not compatible

Juni — Tue, 04 Apr 2023 01:08:29 GMT

Hello there,

Just checking in to make sure that you saw our responses. I'll be locking this thread if we don't hear back from you again in 24 hours. Should that happen, feel free to create a new one if you have more questions or have other concerns in the future.

Best,

Juni