“Is the C wire the same as the RC wire? I read the instructions last night and got more confused than when I started. I have attached a photo of the existing controller.”
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No the Rc is the red wire. You need 5 wires or more for this to run with all the functions. You can use one of the other wires but you have to drop control of the fan. It will only come on when furnace comes on.
Sorry, there was a problem. Please try again later.Hi there! The C and Rc wires are not the same. To install this thermostat you should follow the exact same wiring of the previous thermostat. If you don't have a C wire or are not sure about how to wire this WiFi thermostat, please contact us at (855) 733-5465 Monday - Sunday 8 am to 10 pm CST and reference case 01680271 that we created for you. Any of our agents will be happy to assist you getting the thermostat installed. Have a great day!
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