11-19-2021 08:45 AM
I have written down my old wires and where they are hooked up. I cannot find any article that asks what color wires you have and where to hook up the wires to the new nest thermostat.
11-19-2021 01:13 PM
Watch the following on youtube and you will get all the info you will need.
https://youtu.be/CCNIko3iZIE
11-19-2021 02:42 PM
It helped with learning which wires and what they are used for. I have 5 wires. 1.white wire connected to aux. Yellow hooked to y. Green hooked to g. Blue hooked to o. Red hooked to r. Now where does the blue wire go on the nest thermostat? Also does the white wire go on the w on the nest thermostat? Thanks for your help and if you or someone could answer the 2 questions. Again thanks.
11-19-2021 01:15 PM
If after watching that you can’t figure it out, just drop me a line describing where each wire is connected on your current thermostat and I will provide you with the mappings.
11-19-2021 02:59 PM
Ok cool, you have a heat pump setup. Do the following:
white to W2 Aux
yellow to Y1
green to G
blue to OB
red to either Rc or Rh, it does not matter.
11-19-2021 03:18 PM
Okay I tried hooking it up like this. I hooked the white to w. Yellow to y. Green to g. Blue to OB. Red to r. The heat pump came on outside, but the inside unit did not come on. By the way I live in a trailor and I live in Georgia if that helps. When the Honeywell thermostat was hooked up the inside and outside units both worked when the heat or cool air was on. I am not sure if it was right but it was like that when I bought the trailor brand new. Thanks for your help. If I can’t get this right I might have to call a pro. Thanks again for your help
11-20-2021 01:15 PM
This might be a heat pump balance setting. Check in the your nest thermostat setting.
more information here https://www.alphr.com/nest-thermostate-keeps-using-aux-heat/
11-20-2021 02:25 PM
This won’t work. Don’t have a heat pump setting on the thermostat. Thanks anyways. Guess I will hire a pro.
11-22-2021 05:24 AM
Do you have any additional information?
11-22-2021 05:37 AM
What is your exact Nest model, is it the Nest 2020, the one with the mirrored faceplate?
11-22-2021 07:45 AM
It is just a plain nest thermostat. It is pinkish color.
11-23-2021 09:22 PM
Ok thanks for confirming. Could you please take a pic of the wire plate and upload to this thread?
11-24-2021 05:01 AM
Thanks for all your help. I had to have a professional hook it up because it was driving me crazy. Thanks anyways.
11-24-2021 05:06 AM
Ok great it all worked out.
08-09-2022 12:51 PM
@laurentbourgbased on your response, should my white one here (https://www.googlenestcommunity.com/t5/Nest-Thermostats/Wiring-Question-Nest-Thermostat/m-p/215368#M...) be in the w2?
And does the O/B look correct?
( I have 6 wires)