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How to Tell if Your Thermostat Has a C Wire

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Rob Some Knowledge

Most modern smart thermostats require the use of a C wire. I show you how to tell if you thermostat already is taking use of a C wire, or has the potential to connect a smart thermostat. Hope you learned something and feel free to ask any questions!
How to Connect your Unused C Wire:    • How to Connect an Unused C Wire (Comm...  

posted by aclatatsgz