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-   -   Furnace diagnostic code (https://www.askmehelpdesk.com/showthread.php?t=163008)

  • Dec 15, 2007, 01:18 PM
    Glennbob
    Furnace diagnostic code
    Concord furnace diagnostics :

    3 flashes : Pressure switch is open while inducer is on.
  • Dec 15, 2007, 01:27 PM
    hvac1000
    Plugged vinyl tube going to pressure switch.

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