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-   -   Diagnostic light flashing 3 1 on Bryant gas furnace. (https://www.askmehelpdesk.com/showthread.php?t=321530)

  • Feb 24, 2009, 01:06 PM
    rgssman
    Diagnostic light flashing 3 1 on Bryant gas furnace.
    Bryant gas furnace 14 yrs old flashing 31 on diagnostic led
  • Feb 24, 2009, 02:38 PM
    KC13
    Model # ? Check the service label for description of code 31, I believe it is relative to the pressure switch.
  • Aug 8, 2012, 01:01 PM
    ost
    My light flashs 3 fast and 3 long I have no code book help

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