2007 Volvo vn630 electrical problem with sleeper fan.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by combo7, Oct 22, 2018.

  1. combo7

    combo7 Bobtail Member

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    Jan 19, 2016
    Worcester MA
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    hi I have a 07 Vo Levi vn 630 d12 and I’m having an issue the switch on the dashboard for the sleeper fan and the one on the sleepers are blinking and when I have the sleepers light on it will shut it off on its own and will start beeping any ideas ? Thanks
     
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  3. Socal Xpress

    Socal Xpress Road Train Member

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    Los Angeles, Ca
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    Do the basics....... check the grounds and make sure everything is nice and tight with no corrosion.

    Does your truck have the battery cut off switch? That thing builds up resistance and makes things go wonky.
     
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  4. nasriza

    nasriza Road Train Member

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    Chicago, IL
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    the power supply to the sleeper is acting up check all the terminals behind the sleeper contol and make sure they are all making proper contact usually this takes care of it very problematic on volvos
     
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  5. combo7

    combo7 Bobtail Member

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    Jan 19, 2016
    Worcester MA
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    Thanks for the reply’s it turn out to be a bad battery and a DEAD alternator, all fix now thank God !!!
     
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  6. JohnC123

    JohnC123 Light Load Member

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    Jan 25, 2018
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    It's good to hear a positive outcome now and then from all the hard work experiences from all you (me) insomniacs out there....thanks everybody.
     
    combo7 Thanks this.
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