You could check the switch in a pan of boiling water..or just get a new
switch and install it.  My fan rarely comes on when the vehicle is
moving...it does sometimes come on after I have stopped the vehicle or if I
stand still on a hot day with the motor running.   Mine is an inline VW
motor but the rest of the cooling and electrical is pure Vanagon...

On Thu, May 1, 2014 at 9:49 AM, Project Pat <psdooley@verizon.net> wrote:

> The rad fan is triggered by the AC on most vehicles.
> Check the wiring diagrams to confirm.
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> TCollins
> Sent: Thursday, May 01, 2014 11:56 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Radiator fan switch wierdness
>
> I wondered about that too. Since the fan does trigger from time to sporadic
> time.
>
> Would any other switch trigger radiator fan operation?
>
> > On May 1, 2014, at 11:22 AM, "Project Pat" <psdooley@verizon.net> wrote:
> >
> > Just a wild guess, you may want to take it out and check for buildup.
> > Junk on the coolant side of the switch could insulate it and cause
> delayed
> > reaction.
> >
>