Blower fans contantly on full

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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JD406
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Blower fans contantly on full

Post by JD406 »

Hi everyone

My 02 D9's blower fans are constantly on full and I cant turn them down. I can change the temp and direction, anyon got any ideas what the problem is??

cheers
James
"I'd rather lose by a mile because I built my own car then win by an inch because someone else built it for me. Your car...is your story. So don't let someone else write the book." - Moog
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steve_earwig
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Re: Blower fans contantly on full

Post by steve_earwig »

Unskilled meddling sin©e 2007

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JD406
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Re: Blower fans contantly on full

Post by JD406 »

Thanks mate I'll have a look at where it is tommorw nd try replacing it. Wish me luck lol
"I'd rather lose by a mile because I built my own car then win by an inch because someone else built it for me. Your car...is your story. So don't let someone else write the book." - Moog
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Doggy
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Re: Blower fans contantly on full

Post by Doggy »

As Steve says, it's very likely to be the control module.

IIRC, one resourceful soul actually managed to change the faulty transistor / ic for less than a tenner.

Might be worth another search, if you're handy with a soldering iron......
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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Re: Blower fans contantly on full

Post by steve_earwig »

That one was completely dead, rather than running full tilt...
Unskilled meddling sin©e 2007

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Doggy
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Re: Blower fans contantly on full

Post by Doggy »

...Didn't remember that bit :oops:

If it were mine, I'd still be tempted to at least test the output device....
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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JD406
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Re: Blower fans contantly on full

Post by JD406 »

dogslife wrote:...Didn't remember that bit :oops:

If it were mine, I'd still be tempted to at least test the output device....
The output device?? Had a quick look on ebay and these things are £50+ :shock:
"I'd rather lose by a mile because I built my own car then win by an inch because someone else built it for me. Your car...is your story. So don't let someone else write the book." - Moog
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Doggy
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Re: Blower fans contantly on full

Post by Doggy »

Might also be worth trying Ade the coupe breaker: http://stores.ebay.co.uk/ade1122-406-coupe-parts

(Don't know if it's the same animal on a coupe, but it is likely to be).
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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