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    sportsfan268's Avatar
    sportsfan268 Posts: 1, Reputation: 1
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    #1

    Jun 24, 2009, 06:35 PM
    I need to know the wire diagram to a 4 wire AC unit.
    I need to know the wire diagram to a 4 wire AC unit. I replaced the thermostat and it doesn't seem to be working properly. I think I may have it wired wrong.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    Jun 24, 2009, 07:35 PM

    r= red jumpered to rc/power
    w=white/heat
    y=yellow, or sometimes blue (if no yellow)/ac
    g=green/ fan
    veedogg40's Avatar
    veedogg40 Posts: 3, Reputation: 1
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    #3

    Jul 25, 2010, 12:32 AM

    No, sorry... the wires coming from the thermostac... to the heater and the 2 wires coming from the a/c condersor?
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