topic Re: jumpered rh and rc in Nest Thermostats

jumpered rh and rc

chipmilo — Sat, 30 Apr 2022 22:21:33 GMT

If this has been answered, I can't find where...

My current programmable thermostat has just 4 wires coming in W, G, R, and Y (really blue, but tagged Y). The R goes into a jumpered RH & RC connection.

When I try to wire up the new Nest thermostat, putting R into R it continually get an E294 Error. Which seems to imply no power. Suggestions??

Re: jumpered rh and rc

Patrick_Caezza — Sat, 30 Apr 2022 23:15:29 GMT

What wires did you select in the app when it asked you to identify the wire being used?

Re: jumpered rh and rc

SHARPpatriot — Sat, 30 Apr 2022 23:30:09 GMT

Same problem, i believe i said i had a RH

Re: jumpered rh and rc

chipmilo — Sat, 30 Apr 2022 23:38:12 GMT

I said I had W,Y,G, and R since all I really have is a Red wire

Re: jumpered rh and rc

chipmilo — Sat, 30 Apr 2022 23:38:55 GMT

Did that work? What about running the AC?

Re: jumpered rh and rc

chipmilo — Tue, 03 May 2022 13:05:52 GMT

I don't feel like I ever got a definitive answer on this. to repeat, the wires I have coming out of the wall are: W, Y, G, R. On my current programmable thermostat there are RH & RC connectors which are jumpered together along with the R wire.

So when I'm trying to set up and install the Nest, what do I tell it I have for wires?

Re: jumpered rh and rc

Patrick_Caezza — Thu, 05 May 2022 01:43:52 GMT

The color of the wire is meaningless as there is no standard.

The Rc and Rh wires are only used if you have a separate heating and cooling system. Most systems are combined and that's why there is a jumper between the Rc and Rh terminal at the thermostat.

The Google Home App during set up for the Google Nest thermostat will ask you to select which wires you have. The options are R, Rc, and Rh. In your case, you want to select the R wire only.

Re: jumpered rh and rc

Mevans3952 — Sun, 08 May 2022 18:00:06 GMT

I just have an R coming out of the wall and in my old thermostat I had a jump from R to Rc with two wires in the R

Re: jumpered rh and rc

Ryan_G — Mon, 13 Jun 2022 18:20:31 GMT

Hey folks,

Thanks for visiting the Google Nest Community.

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.

If you have additional questions, feel free to submit another post and provide as many details as possible so that others can lend a hand.

Hope this helps!

Kind regards,

Ryan