topic Re: Gen 3 r to Rc jumper in Nest Thermostats

Gen 3 r to Rc jumper

jnucci — Mon, 19 Jun 2023 13:11:23 GMT

i have a AC unit only and my existing thermostat has a jumper between R and Rc - like so

when i connected the nest i connected to Rc all worked fine then received an error “no power to Rc wire”

i have googled and read that i should just connect to R on nest but there is no r just rc and rh

any ideas as to how i can solve this ?

thank you

Re: Gen 3 r to Rc jumper

jnucci — Mon, 19 Jun 2023 13:13:02 GMT

do i have to charge the nest first ?

Re: Gen 3 r to Rc jumper

Jenelyn_O — Sun, 25 Jun 2023 19:17:20 GMT

Hi jnucci,

Thanks for posting in the Google Nest Community forum. I'm sorry for the delay. You have a Nest Learning Thermostat, and it should be fine to connect the red wire to either RC or RH. Could you please check your thermostat power readouts? You can go to Settings, then Technical Info to check it. For your reference, you can visit this link.

Best,

Jenelyn

Re: Gen 3 r to Rc jumper

Jenelyn_O — Wed, 28 Jun 2023 23:42:01 GMT

Hi there,

Checking if you still need help. Please let me know, as I'll be willing to assist you further.

Thanks,

Jenelyn

Re: Gen 3 r to Rc jumper

zoeuvre — Fri, 30 Jun 2023 00:59:45 GMT

Hi all,

@jnucci, we haven't heard from you in a while, so we'll be locking this thread if there is no update within 24 hours. If you run into any more issues in the future, please feel free to create a new thread.

Thanks for your help, Jenelyn.

Best,

Zoe