Take a look at the wiring diagram. The high speed is accomplished by a relay
directly feeding the fan motors. The lower speeds are done with a resistor
in series with the fan motors. It can and does burn out.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Gregg Carlen
Sent: Thursday, June 28, 2012 2:24 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: AC Blower Fan Speed

Hmmm. I have this same problem. I swapped out the blower switch with a new
one, but no change. Hoping someone else has solved this before.

On Jun 28, 2012, at 2:11 PM, Finn Runyon <finnrunyon@GMAIL.COM> wrote:

> Hi All,
> I have been quietly plugging along on lots of projects on the 87 Westy.
What currently has me stumped is that I only have high speed (#4) on the air
conditioning blower speed.  I swapped out the switch from my 89 which works
on all four speeds, but it does not work on the 87.  I have scoured the
Bentley but have not been able to identify a relay that may be bad.  As
always your help is much appreciated.
> Finn Runyon in Taos NM
> 87 Westy Pooh
> 89 Westy Roo