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06 Volvo - sleeper fan & light inop

Discussion in 'Trucks [ Eighteen Wheelers ]' started by lilillill, Aug 10, 2009.

  1. Aug 10, 2009 #1
    lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Nov 7, 2007
    Possum Booger, Alabama
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    I've just had the batteries replaced in my '06 Volvo and now the blower fan in the sleeper as well as the overhead light does not work.

    The fan control switch on the dash used to stay lighted all the time, even with the key off. Now it does nothing... No light... Nada.

    I read the manual and apparently there's some sort of low battery cutout relay that kills circuits for the lights and stuff in the sleeper. Anyone else experience this problem and maybe have a quick fix?
     
    lilillill, Aug 10, 2009
    lilillill, Aug 10, 2009
    #1
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  3. Aug 17, 2009 #2
    Sandlapper

    Sandlapper Light Load Member

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    Feb 6, 2008
    Simpsonville, SC
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    I had the same problem in my 07 780. I unplugged the sleeper control panel for about 1 minute and it fixed the problem.
     
    Sandlapper, Aug 17, 2009
    Sandlapper, Aug 17, 2009
    #2
  4. Aug 17, 2009 #3
    Kansas

    Kansas Road Train Member

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    aircap, Ks.
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    I wonder if you just keep driving the truck (till it senses enough +voltage) if it will fix itself? How many miles have you put on since the new batteries?

    I was having a similar problem, except bad batteries. It fixed itself after the new bats were installed, and I drove it for a couple hours.

    Might not be a bad idea to unplug that sleeper panel as suggested above.
     
    Kansas, Aug 17, 2009
    Kansas, Aug 17, 2009
    #3
  5. Aug 18, 2009 #4
    Sandlapper

    Sandlapper Light Load Member

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    Feb 6, 2008
    Simpsonville, SC
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    It will not fix itself. I ran with mine like that for about 2 weeks. There is a capacitor in the sleeper panel that stores a small amount of voltage unless unplugged for about 1 minute. It is a glitch that when the voltage is lost the panel stays in the low voltage shut down mode. If you unplug the panel and plug it back in you will be happy.
     
    Sandlapper, Aug 18, 2009
    Sandlapper, Aug 18, 2009
    #4
  7. Aug 19, 2009 #5
    lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Nov 7, 2007
    Possum Booger, Alabama
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    Bingo! Sandlapper hit the nail on the head. I unplugged the panel for a minute and now everything is working again.

    Many thanks!
     
    lilillill, Aug 19, 2009
    lilillill, Aug 19, 2009
    #5
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