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-   -   Intertherm furnace does not fireup (https://www.askmehelpdesk.com/showthread.php?t=290253)

  • Dec 9, 2008, 01:13 PM
    jd109
    Intertherm furnace does not fireup
    I have a intertthrm gas derect ignition furnace model MMHB-070ABHR-06 led light flashes 2 times furnace does nothing codes on door panel are unreadable need the diagnostics codes can any one help I would be very grateful thanks in advance
  • Dec 9, 2008, 02:07 PM
    hvac1000
    Voltages on control mod are

    Control Module: On call for heat:

    L1 and L2 = 120vac

    IND and L2 = 120vac

    After approx. 1 minute :

    HSI and HSIG = 120vac

    PSI and C = 24vac

    PSO and C = 24vac

    GV and C = 24vac

    This is all the info I have

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