Re [V8] Re: Air blower says-on

[dsaad at icehouse.net]

I get lucky once in a while...

Glad you got off cheap.

Dave


Quoting "Peter A. Green" <peteragreen at telus.net>:

> Dave - for a WAG it was right on the money.  Even got a used replacement
> from
> a 5000 in a wreckers (it is an expensive little beasty when bought at the
> Audi dealer!).
> thanks for the suggestion
>
> Pete
>
> Subject: Re: [V8] Re: Air blower stays-on
> To: v8 at audifans.com
> Message-ID: <1088460009.40e094e99f303 at webmail.icehouse.net>
> Content-Type: text/plain; charset=ISO-8859-1
>
> "WAG" of the day:
>
> The driver transistor for the fan is located in the air plenum under the
> rain
> diverter. It sounds like this unit has shorted.
> If you have the wiring diagrams it should be pretty easy to diagnose with a
> volt
> meter. If the fan runs with no control input then the driver is probably
> toast.
> If the control input is stuck then the control head is toast.
> I have no idea how or if this unit crosses over to a GM car, but it is made
> by
> Delco.
>
> Dave
>
> Quoting "Peter A. Green" <peteragreen at telus.net>:
>
> > Anticipating the advice to 'go and dig into my Audi stuff' - I searched
> and
> > located my 'Bentley'.  The diagnostics detail the 'fresh air blower
> > staying-on when off is pressed' problem but do not mention a relay to
> control
> > the blower operation, instead they focus on wiring problems and head unit
> > failure.  Before I start checking the wiring loom, do the head and control
> > unit edge connectors/copper on fibre-glass circuit boards suffer from the
> > same oxidation problems as the instrument cluster board(s).
> >
> > Pete
> >
> > '90 V8Q Pearl
> >   ----- Original Message -----
> >   From: Peter A. Green
> >   To: v8 at audifans.com
> >   Sent: Monday, June 28, 2004 8:58 AM
> >   Subject: Air blower stays-on
> >
> >
> >   Wondered if any-one had BTHT (been there - had that) of the air
> conditioner
> > blower motor staying-on after pressing off on the control head.  The air
> > conditioner operates normaly except for the blower remaining on.  I suspect
> a
> > relay but my Audi 'stuff' is in storage after a recent move and the
> thought
> > of routing through boxes of stuff is overwhelming.  Any suggestions?
> >
> >   Pete
> >   '90 V8Q Pearl
> > ____________________________
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