Hi HCG67,
Thank you for posting in the community. I understand that you want to check the wire compatibility of your Google Nest Thermostat. I'm here to help.
To further assist you, please answer the following questions:
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What type of Nest Thermostat do you have? (Here is a helpful article on how to identify the Nest Thermostat).
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Can you please take a picture of your current thermostat's wiring?
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What type of HVAC system do you have? (Ex. Heat pump, conventional, etc.).
Please keep me posted on your findings.
Regards,
Byron
