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Fan only works on number 4

Discussion in 'Cavalier, Calibra, Vectra, Signum, Sintra & Insignia owners forum' started by vega, May 2, 2008.

  1. vega

    vega New Member

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    Location:
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    Hi. I have a 2003 Vectra diesel which I purchased 6 months ago. I have an irritating problem with the ventilation. It only seems to work with the dial set to 4. The same goes for the aircon. Its either full blast or nothing at all. Curiously even when its on 4 and you can hear the fan roaring away somewhere behind the dashboard, there seems to be hardly any airflow from the vents. Finally, I seem to have a problem withe the screen misting up very quickly. The only way to clear it seems to be to turn the air con and the demist button on, but when you do, the first thing it does it mist it up further and then it takes a while to clear. Its not such a problem now, but it was a serious inconvenience during the winter months. Is tis normal for a Vectra?
  2. rapala

    rapala Well-Known Member

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    Location:
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    Drives:
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    The resistor that controls the heater motor speed will probably need to be replaced in order to sort out the problem with the fan, Im not sure where it is located on the Vectra C though. You could try having the cabin pollen filter changed and see if that helps the misting up window problem.(it usually does)
    Bradley146 likes this.
  3. N10KHN

    N10KHN New Member

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    Location:
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    The fan problem is a resistor pack that controls the fan speeds. I replaced mine after the same problem. It pushes into the air duct work behind the glove box and has a fairly heafty set of wires and plug. The wiring then goes to the fan motor in the same area.
    Also mine blocked up in the rain water drain grommet below the pollen filter. This inturn let water into the ventilaion system via the blower motor. Then when you use the ventilation system it is blowing moist air about hence not clearing the mist.
    The resister packs cost £25 from vauxhall.
    hope this helps you out.

    Nick.
    Bradley146 likes this.
  4. Dynamic Dave

    Dynamic Dave Qualified lego bricklayer

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  5. vectrakol

    vectrakol Member

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    Had this problem on my 2004 vectra c as stated above the resister pack had failed, but the replacment pack also failed due to the blower motor being partlly seized due to the water that had entered the duct due to the blocked drain in the scuttle panel just below the pollen filter.

    given that you say that you get very little air flow even on speed 4 I suggest that before spending £25 on a new resistor pack which might fail again, that you get the motor checked and the modification to the motor housing, which is to drill a hole in the bottom so water can escape if it gets in carried out.
  6. vega

    vega New Member

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    I get a good blast of cold air when turning on the aircon so the fan seems Ok. It slows down when you turn the aircon off though. I will get a resistor pack from Vauxhall. Where is the pollen filter located? I did wonder whether there was a filter that needed replacing.
  7. Dynamic Dave

    Dynamic Dave Qualified lego bricklayer

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    Car pollen filter is located HERE
  8. vega

    vega New Member

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    Thanks for everyones help. Replacing the resistor pack solved it. I also replaced the pollen filter. The old one was black! There was no water or damp around so I don't know why it blew other then the fan motor being strained due to a clogged filter perhaps or poor quality components.
  9. vega

    vega New Member

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    Location:
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    PS, Dynamic Dave, thanks for posting the link to the pictures. I'm not sure I would have found it without them.
  10. Spooks

    Spooks New Member

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    Please tell me you didn't pay £20 for a pollen filter!!!!

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