No heat or ac

Discussion in 'Trucks [ Eighteen Wheelers ]' started by jking006, Apr 15, 2014.

  1. jking006

    jking006 Bobtail Member

    46
    14
    Jun 23, 2013
    cadiz, ohio
    0
    2007 9400 with isx. . The blower motor works and air is flowing out of the dash... In Florida yesterday and AC stopped blowing cool up front but worked in the bunk.. today back north a little chill and now no heat.. no change in air temperature no matter where the dial is turned to... Any ideas? ? Also heat works in the
    bunk..
    thanks
    jeff#
     
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  3. BeenJammin

    BeenJammin Light Load Member

    256
    117
    Dec 17, 2013
    0
    Sounds like an actuator problem or linkage, or the blend door is binding to the dash side of flow in the HVAC box.
     
  4. Heavyd

    Heavyd Road Train Member

    7,626
    6,027
    Feb 4, 2009
    0
    Yep, temp blend door problem or controller problem.
     
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