I may be wrong on this but it's the basic vanagon and the cooling fan
for the radiator should come on automatically. I think Ken Wilford of
Van-Again (I hope I am crediting the right person) has a post somewhere
that describes how to do a rudimentary test of all three speeds on the
fan to ensure the fan is working, and to test the thermostat control. If
you are having a problem getting  heat in the cab and the heater blowers
are working, then you really should check your thermostat in the cooling
system. It may very well be stuck in  the open position. If all is
working OK, being in Virginia this time of year, your radiator cooling
fan should come on. I am in the deep south, and the fan on my van does
not come on until outside temps have reached into the 80's.

Good luck.

John Rodgers
88 GL Driver

> Brian Yonker wrote:
>
> Hello all,
>
> I have an 86 Syncro.  It is getting warmer outside and my radiator fan
> does not want to come on.  It only comes on when it is freezing
> outside and therefore, keeps the cooling system sooooo cool that I
> don't have any heat.  Now that it is getting warmer, it doesn't come
> on at all (plenty of heat to spare in the cab)and I'm afraid of it
> overheating.  Can anyone please tell me how the radiator fan circuit
> works?  I cannot find anything on it in the Bentley.
>
> Please, if anybody knows anything about this system, p-mail me.
>
> Thank you,
>
> Brian
> 86 Syncro
> 82 Westy Diesel
> 87 Syncro (for Parts)
> Suffolk, VA