combustion fan won't shut off

Discussion in 'HVAC' started by yimmortal, Oct 29, 2007.

  1. Oct 29, 2007 #1

    yimmortal

    yimmortal

    yimmortal

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    nordyne furnace, propane, about year 2000
    no circuit board, just relays and basic stuff

    when i turn on the power, the combustion fan runs constantly. won't shut off.
    this blows out the pilot light

    any ideas?
     
  2. Nov 23, 2007 #2

    matthewwj

    matthewwj

    matthewwj

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    This could be caused by a few things, does the thermostat keep the temperature, meaning regularly turn on and off? If so, you might have some wiring issues from the thermostat i.e, a short, or improper wiring to the furnace.
     

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