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    stefanihaynes's Avatar
    stefanihaynes Posts: 2, Reputation: 1
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    #1

    Oct 2, 2009, 10:01 AM
    Installing new thermostat
    I have an old thermostat and just bought a Honeywell RTH230B1006. I have four wires, 1 red, 1 blue, 1 yellow, and 1 white. The back of the new thermostat says Rh, Rc, W, Y, and G. Where does each wire go? Thank you!
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Oct 2, 2009, 12:37 PM
    Did you take note of which posts the wires were hooked to (color of wire) on the old tstat before you removed them?, if not you might need to go to other end (at furnace) and see what each color wire is connected to,, let us know
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