Volvo 670 2007 bunk blower

Discussion in 'Volvo Forum' started by Ruta55, Mar 22, 2014.

  1. Ruta55

    Ruta55 Bobtail Member

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    Aug 11, 2012
    Schaumburg,IL
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    Hi guys, deal is bunk blower off on volvo 670 "07, tested motor - work 100%, sleeper panel - work 100%, cant see +12 to motor, there are 3 wires goes to it: two thick like +/-, and thin one, where the power changes to position of speed switch. where should i look to find +12, cables seems to go in a wall behind the driver, is there any connector or fuse there? I have lost my mind honestly. Thanks for your answers in advance,
     
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  3. Steel Eagle

    Steel Eagle Bobtail Member

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    12
    Dec 14, 2013
    Cleveland, OH
    0
    Check the fuse, in the panel below the temp dial in the sleeper control panel. I believe its a 25A. Very easy to blow out. I think is all the way to the right and on the bottom row. I have a 2006 VNL630 and that's where it is,
     
  4. Ruta55

    Ruta55 Bobtail Member

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    Aug 11, 2012
    Schaumburg,IL
    0
    Well, checked that fuse, its for parking heater, main fuse for that blower in center console, usually should be a relay for things like that but i had no luck to find it. Remember when was driving '06 volvo there was additional relays right behind cup holder by the fuses, on '07, it dissapeared or been replaced with some tricky module or so,
     
  5. bigrob104

    bigrob104 Bobtail Member

    3
    3
    Apr 6, 2014
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    did you ever find the problem having the same problem check fuse good check blower good panel in the back is on seem to be working
     
  6. Ruta55

    Ruta55 Bobtail Member

    19
    0
    Aug 11, 2012
    Schaumburg,IL
    0
    nope,unfortunatelly,not,still waiting for clever advise
     
  7. bigrob104

    bigrob104 Bobtail Member

    3
    3
    Apr 6, 2014
    0
    Got the problem fixed it was a burn wire along the door put it back together works fine now
     
  8. Ruta55

    Ruta55 Bobtail Member

    19
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    Aug 11, 2012
    Schaumburg,IL
    0
    Hi man, would u point where is that wire is and what need to be removed to get to it. Thanks in advance,
     
  9. bigrob104

    bigrob104 Bobtail Member

    3
    3
    Apr 6, 2014
    0
    Its the strip that goes along your left door when you open it 4 screws that holds it down you got to pop the plastic caps off to get to the screws
     
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  10. Ruta55

    Ruta55 Bobtail Member

    19
    0
    Aug 11, 2012
    Schaumburg,IL
    0
    Thank you much bigrob104, problem fixed , just curious what can cause that prob, from 15 wires one got hole and rust ate it out, very strange...
     
  11. magnum2

    magnum2 Light Load Member

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    11
    Apr 25, 2014
    0
    Hello, all of you gear-heads.

    Here is my situation, I do not want to waste money for things that are not broken, my cab blower motor stopped working.


    Here is what I've done: I've pulled the blower motor out and connected it to the 12v battery, directly, and it worked fine. So, I'm thinking that my blower motor is in working condition. Correct?

    Now, I'm not to electrically savvy, so, here is what else I've done: there are 3 plugs on the blower motor assembly. One plug, two wires, connects to the motor itself. Another plug, bunch of wires, connects to what looks like the heat exchanger - shaped like half moon, and bolts to the motor housing with two torx screws. Third plug, looks like it connects to the "thermometer"?

    Next, I've put the volt meter on the plug that connects to the motor, while the plug is connected to the motor. With all of the plugs connected my reading was zero Volts. If I'll unplug the motor plug, and still keep my multimeter leads on that plug, the reading will jump to 12V, depends on the speed that is on the fan setting. Voltage would fluctuate if I'll change the fan speed setting. If I'll plug the plug, from the wiring harness, back into the motor, the voltage would drop to zero volts. Also, if I'll unplug the plug with multiple wires, from the half moon shaped heat exchanger looking thingy, and keep the motor plug unplugged then the reading will drop from 12v to zero V. If I'll plug that plug, from the half moon looking thingy, back in, and keep to motor plug unplugged, then the voltage reading on the motor plug will jump up to 12 or so volts, dependent on the fan speed setting.

    By the way, the blower fan and climate control in the bunk work fine. The above issue is in the CAB portion of the truck.


    ANY IDEAS WHAT IS WRONG OR WHAT I NEED TO REPLACE?????
     
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