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-   -   Furnace not working (https://www.askmehelpdesk.com/showthread.php?t=149216)

  • Nov 6, 2007, 02:11 PM
    darrin1w
    Furnace not working
    I have a Goodman GMP100-4.

    It does not ignite. I have followed the written instructions and cleaned any debris arount the unit. Suggestions?
  • Nov 6, 2007, 05:24 PM
    XenoSapien
    Does it have a spark-box? Does the fan come on?

    XenoSapien
  • Nov 7, 2007, 10:25 AM
    darrin1w
    It has a box. The fan does come on, then the light on the board flashes three times and the fan shuts off.
  • Nov 7, 2007, 02:17 PM
    labman
    Go to https://www.askmehelpdesk.com/heatin...ons-58313.html

    Do you have a decal that lists 3 flashes, or flash, pause, flash, flash (12) as pressure switch open? Check and clean the hose from the pressure switch. Suck on it and see if the switch clicks.

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