Automatic Climate Conrol...Audi 100...1990

[Tony Hoffman]

Start by unplugging the connector going into the fan resistor pack in teh
raintray area. Test for power there. The bentley will show you which wires
you are looking to test, let us know what you find.

Tony

On Thu, Sep 20, 2012 at 10:56 PM, mboucher70 hotmail.com <
mboucher70 at hotmail.com> wrote:

> I removed the climate control unit from the car to bring it inside and
> examine the PC board.
>
> Even after completely removing the control unit, the blower motor still
> runs on high whenever the ignition is on.  That doesn’t seem like the
> failure mode of a switch, and thus I’m wondering again if there’s a relay
> involved.
>
> Does the fact that the blower motor continues to run on high even without
> the control unit, point to it being a likely flaw not related to the
> climate control unit?
>
> I’ve opened up the climate control unit and its quite immaculate and a
> pretty solid unit.  So before I arrange for a replacement, just wanted to
> eliminate any other possibilities that would make the blower motor run on
> high with or without the control unit.
>
> From: Jay M