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Help needed: A/C wire in Furnace loose.

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  • Help needed: A/C wire in Furnace loose.

    I have a picture of the switch board here.


    Had an air duct company cleaned duct yesterday and found out the guy made a mess. 3 wires in the furnace switch are loose. Gas furnace model is 58GS075-GA (CA?)

    RED and GREEN wires from the thermostat.
    CLAY (WHITE?) wire from A/C.

    I put the thermostat wires back as RED ->RED, GREEN ->GC. The furnace seems working ok. But how about the CLAY wire from A/C?

    On the switch board I have: C, Y, GC, GH, R, W.
    The red wire from A/C is connected to Y on switch board.

    ================
    I was guessing GC is Green Cool? should I connect the CLAY from AC to GC, and the GREEN wire from thermostat to GH (Green Hot?).

    I'm totally new and would appreciate any help.
    -Layne


  • #2
    Problem solved. Thanks to Labman.

    Connect the loose wire to the C terminal in the left most.

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