“I have a red and a white wire coming to the thermostat. What do I do with the other three wires.”

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• At the control box at the boiler, disconnect the red and white wires coming down from the thermostat ( do not disconnect any wires from the actual thermostat). Use the supplied snap connectors to connect thermostat red and white wires to Nest Power Connector red and white wires (grayish wires). Connect Power Connector remaining three (white) wires to boiler control box red, white and 24 volt terminals. Photos attached.

  Answered by Qwish 4 years ago

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• According to the technician who tried to install it said it does not connect/work, So I am better off buying the more expensive thermostat (learning) or different brand such as the ecobee.

  Answered by Smarttv 4 years ago

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• We suggest contacting a Pro to make sure that the installation is correct based on the type of system you have. For further assistance, you can also reach out to our support team here: https://support.google.com/googlenest/gethelp

  Answered by Nest Support 4 years ago

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