topic Re: Nest wiring issue in Nest Thermostats

Nest wiring issue

nick_r — Thu, 01 Dec 2022 22:58:17 GMT

Hi,

I'm switching from a Honeywell to a Nest thermostat.

The following wires are in use on the Honeywell one:

- R < red

- C < blue

- W-O/B < white

- Y < yellow

- G < green

On the Nest side I connected as follow:

Rh, C, W1, Y, G All my equipment (heating, cooling and fan) are detected. However, when performing a test, nothing fires up

I then moved the white wire from W1 to O/C to no avail.

Same when moving the red wire from Rh to Rc.

When putting the Honeywell thermostat back on, everything is working just fine.

What am I missing?

Re: Nest wiring issue

EdwardT — Tue, 06 Dec 2022 01:01:28 GMT

Hi nick_r,

Thanks for reaching out. I'm sorry to hear that you're having an issue with setting up your Nest Thermostat. I'd love to know more about this and I have a few questions:

What type of Nest Thermostat do you have?
What type of HVAC system do you have?
Could you share a photo of how your current thermostat is wired?

Looking forward to your response.

Thanks,

Edward

Re: Nest wiring issue

nick_r — Tue, 06 Dec 2022 04:21:49 GMT

The issue ended up being hardware related: defective base

Re: Nest wiring issue

EdwardT — Tue, 06 Dec 2022 05:17:07 GMT

Hi nick_r,

Thanks for the update. Were you able to get a replacement for the base?

Thanks,

Edward

Re: Nest wiring issue

EdwardT — Fri, 09 Dec 2022 02:13:45 GMT

Hi nick_r,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do.

Thanks,

Edward

Re: Nest wiring issue

EdwardT — Mon, 12 Dec 2022 22:40:22 GMT

Hi nick_r,

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