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-   -   G8C furnace blowing cold air (https://www.askmehelpdesk.com/showthread.php?t=474834)

  • May 30, 2010, 02:29 PM
    cooprider14
    G8C furnace blowing cold air
    I have a G8C forced air furnace with a diagnostic indicator saying the limit switch is open (4 blinks). If I am looking at the circuit board diagram correctly it looks like the limit switch is a little red dual on/off switch in the upper left corner of the circuit board. The other switch appears to be the pressure switch, which is on. What looks like the Limit switch is off.

    I am not sure this is right and don't want to just flip what I think is the Limit Switch back on, unless I'm sure.

    Anyone know?
  • May 30, 2010, 02:38 PM
    cooprider14

    I think the manufacturer is York.
  • May 30, 2010, 03:31 PM
    Joshdta

    The high limit is a 2 by 3 black rectangle pastic with 2 wires going to it. It will be located to the right just above the heat burner box
  • May 30, 2010, 07:42 PM
    cooprider14
    Is it just a thin plastic plate, below the burners? It's about the size you said, and it's held in place by two screws. Dow do I close it?
  • May 30, 2010, 07:44 PM
    cooprider14

    That should be "how" do I close it?
  • May 30, 2010, 07:52 PM
    Joshdta

    Tape it with a screw driver take it out at flip the end with your finger.

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