topic Re: Need help with wiring Nest Thermostat in Nest Thermostats

Need help with wiring Nest Thermostat

jay32 — Fri, 26 Apr 2024 02:12:26 GMT

Hi.

I am installing a standard Nest Thermostat and am confused on the wiring. I have the following configuration on the current thermostat and would appreciate direction on how to connect to the Nest Thermostat:

Red Wire - connects to RC and RH that are jumped

Blue wire - connects to W

Blue & Yellow - connected both to Y

Orange - connects to O

Green - connects to G

Thanks in advance for your help. Jay Goodwyn.

Re: Need help with wiring Nest Thermostat

jay32 — Fri, 26 Apr 2024 03:26:21 GMT

Re: Need help with wiring Nest Thermostat

jay32 — Sat, 27 Apr 2024 22:38:12 GMT

Maybe this is the solution?

Re: Need help with wiring Nest Thermostat

jay32 — Sun, 28 Apr 2024 01:00:28 GMT

new information ... I removed the old plate to find out the "2 blue wires" are actually just 1 jumper wire. So there are just 4 wires: Red, Green, Orange and Yellow. So possibly this will be straightforward? Thanks again in advance.

Re: Need help with wiring Nest Thermostat

AxelD — Sun, 28 Apr 2024 19:16:05 GMT

Hi jay32,

Thanks for posting! Here's an image with a suggested wiring, based on the information in your post:

Please note you shouldn't use the jumper wires with the Nest Thermostat. Also, it is recommended to get a C-WIRE or a Nest Power Connector to power up the thermostat.

Regards,

Axel.

Re: Need help with wiring Nest Thermostat

jay32 — Mon, 29 Apr 2024 14:47:02 GMT

Thank you Axel for the reply. The wiring you suggested worked like a charm. Everything seems to be in working order. I have not yet received any messages about the C wire being required so maybe ok? I do have an extra nest connector so I could add that if I do see a message about. Thanks again for you help. Jay.

Re: Need help with wiring Nest Thermostat

jay32 — Fri, 03 May 2024 19:27:08 GMT

Hi, So the system seemed to be working fine ... for A/C the air conditioner turns on and cools to desired temp. Same for heat. The issue is once the desired temp is reached, about every 30 seconds or so, the system will turn on for a few seconds then shut off. I am wondering if a power adapter will fix this? Thanks for your help.

Re: Need help with wiring Nest Thermostat

AxelD — Fri, 03 May 2024 21:52:44 GMT

Hi jay32,

Thanks for posting and that's right! My recommendation would be to install a Nest Power Connector or a C-WIRE. It might not receive enough power.

Regards,

Axel.

Re: Need help with wiring Nest Thermostat

jay32 — Sat, 04 May 2024 14:03:22 GMT

Axel, Installed the Next Power Connector and it seems to have resolved the issue. Thanks for your reply! Jay.