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-   -   Rheem furnace 5 blinking lights (https://www.askmehelpdesk.com/showthread.php?t=467846)

  • Apr 29, 2010, 10:10 AM
    Onione
    Rheem furnace 5 blinking lights
    We have a ten year old Rheem Criterion II furnace which willl not light. Can anyone telll me what 5 flashing green lights indicate. Thanks.
  • Apr 29, 2010, 10:27 AM
    Joshdta

    Should say on the back of the furnace door, on the control itself, or in your owners manual.
  • Apr 29, 2010, 12:03 PM
    Onione
    Quote:
    Originally Posted by Joshdta View Post
    should say on the back of the furnace door, on the control itself, or in your owners manual.
    All I can find is "fault" I read on another site that it will flash 5 if the furnace is capable of being "twinned". I don't know what that means.
  • Apr 29, 2010, 12:24 PM
    Joshdta

    What runs when you turn the heat on? Does it start to flash as soon as it starts up? Did you turn the power off and back on to reset the board?

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