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The Thermostat Wire Color Code You Need to Know
My current thermostat does not a C wire connected to it but the incoming bunch has an extra blue wire that is not connected in both ends. Is it ok if I
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Installed Nest Thermostat. Have a blue wire I did not connect to anything but the system works. What's the risk? : r/hvacadvice
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HVAC-Talk: Heating, Air & Refrigeration Discussion
2 wire boiler . The 2 wire are blue and white - Google Nest Community
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Thermostat Wiring Explained! How To, Color Coding, Types & More
Where does the blue wire on a thermostat go? - Quora
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How To Identify A Thermostat Common Wire (C Wire) & What It Does For Smart Thermostats - YouTube
thermostat - 2 blue wires on furnace - Home Improvement Stack Exchange
