"06" Century Bunk heater not working, Input needed.

Discussion in 'Freightliner Forum' started by Willis Inc., Oct 21, 2021.

  1. Willis Inc.

    Willis Inc. Bobtail Member

    33
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    Nov 2, 2020
    Harrisburg, PA
    0
    All the fuses where good in there when I checked them last week. I will try getting the the whole out to look at it.
     
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  3. Willis Inc.

    Willis Inc. Bobtail Member

    33
    15
    Nov 2, 2020
    Harrisburg, PA
    0
    The top two connecters were a little corroded on the AUX. PDM, because they up like a cup. Cleaned them up, no help.
    Next step replace the AUX. PDM.
     
  4. Willis Inc.

    Willis Inc. Bobtail Member

    33
    15
    Nov 2, 2020
    Harrisburg, PA
    0
    My HVAC wiring dia.
     

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  5. Willis Inc.

    Willis Inc. Bobtail Member

    33
    15
    Nov 2, 2020
    Harrisburg, PA
    0
    Hats off to QUALITYTRUCK, your the man.
    Problem solved, Bad aux. PDM in pillar B behind the driver's seat.
    Fault on the dash was HVAC 2 Controller no response code #200s254 07 also 12 volt back feed on CB2 (pinB6) in the aux. PDM.
    What was not working was the fan motor and the temp servo motor in the bunk.
    I hope this information will help some people down the road.
    Good Luck.
    Thanks, Willis
     
  6. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Jun 14, 2009
    romulus,mi
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    You are welcome. That's why I was being adamant. F.Y.I. Throw a piece of plastic over it to protect from water leaking down from upper bunk window.
     
    Socal Xpress Thanks this.
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