11-30-2023 02:30 PM
My problem is a Yellow wire that attaches to an "X" terminal on the old thermostat. I have the following wiring diagram:
Red - RII
White - W
Blue - G
Yellow - X
Grn - C
RC, and Y unused.
Any thoughts on how to wire the thermostat correctly?
12-05-2023 02:24 PM
Hello drdukes22,
Glad to see you here in the Google Nest Community! I'd be happy to take a look at this for you.
It looks like you have a specific wiring challenge with your Nest Thermostat. Based on the information you provided, it seems you have the following wires:
To correctly wire your thermostat, you'll want to match the wires to the corresponding terminals on your new thermostat. Here's a suggested wiring configuration:
Remember, it's crucial to turn off the power to your HVAC system before attempting any wiring changes to ensure safety. If you're still uncertain, it might be a good idea if you could share a picture of your thermostat's wiring.
Regards,
Mark