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-   -   Intertherm furnace solid red light (https://www.askmehelpdesk.com/showthread.php?t=159383)

  • Dec 4, 2007, 08:31 PM
    charlie123
    Intertherm furnace solid red light
    I noticed that our Intertherm furnace has a solid red light that comes on occasionaly when the heat is running. Does it just mean the fan is coming on? SHould I be concerned? THank you
  • Dec 4, 2007, 11:28 PM
    hvac1000
    On usually means normal operation.

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