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Thread: Strange Heater Blower problem

  1. #1
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    Default Strange Heater Blower problem

    Hi

    First of all, I wouldn't waste your time if I hadn't already read all of the stickies and related posts to this problem.

    Basically, the fan blower will only work on Speed 4.

    I have replaced the blower resister pack and the problem remains.

    When you switch to Speed 1 & 4 you can hear (and feel) the blue relay click.

    I have checked the motor which is clean, dry and spins freely.

    Having read a similar thread someone mentioned "one of the 4 relays", and I only seem to have 3. Is this usual on a manual 4 speed air con ??

    (2005 1.9 CDTI SXI)




    Many Thanks

  2. #2
    Regular Member nokiaman1978's Avatar
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    Default

    possible that it blew again, they have been known, try the maplin thermal fuse fix.

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    Regular Member chris1804's Avatar
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    sounds like the resister

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    Can't be. I have 2 brand new resister packs and the original with the new maplin resister all with the same result !!

  5. #5
    Regular Member chris1804's Avatar
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    Default

    try another relay off a vectra

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    Is it only the blue relay that relates to the blower ?

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    Regular Member djr69uk's Avatar
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    Yes it is. Give it a go as that was the problem for me. The click for 1 was present but not as loud as the click on 4. I took the relay apart and there was some crap in it blocking the contact. Worth a look fella!

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    Regular Member djr69uk's Avatar
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    Here we go... read this thread for more info. In summary, I think it's either the relay or the BCM for you.

    http://www.vectra-c.com/forum/showthread.php?t=56294&highlight=heater


    There are two relays... K4 and K5. The blue rectangular one is the one that controls speed settings 1-3, the other controls speed 4.

    Hope that helps.

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