Re: Radiator fan not running when AC is on

[Jerry Croucher <croucher@mail.eos.net>]

Buchholz, Steven wrote:
> 
> You didn't say what year car yours was ... but on my '85 4kSQ that is
> exactly the way it should work.  The A/C will only make the fan turn on if
> the refrigerant high pressure switch is on ...
> 
> HTH!
> Steve Buchholz
> San Jose, CA (USA)
> 
> > ----------
> > From:         Jerry Croucher[SMTP:croucher@mail.eos.net]
> > Reply To:     croucher@mail.eos.net
> > Sent:         Saturday, May 16, 1998 8:39 AM
> > To:   quattro@coimbra.ans.net
Steve, thanks for the reply.  My car is an 86.  All the VW's & Audi's
I have owned in the past (75 Fox, 80 4000, 82 Rabbit, 84 Vanagon) all
turned the radiator fan on the instant the AC was turned on. (I used
that feature for emergency cooling when the big switch in the radiator
failed)

When the AC was running the high side pipe was hot and the low side was
cold so there is some coolant in the system.  I did find the tap on the
low side but I haven't put a gauge on it.  I didn't see a sight glass or
highside tap anywhere, but I haven't looked that hard for it yet.

BTW there are no missing or blown fuses.

> > Subject:      Radiator fan not running when  AC is on
> >
> > Now that hot weather has hit the midwest I tried out the AC in the
> > 4kcsq I bought in November.  At speed the AC work fine but the fan
> > only comes on when the engine temp rises.  I know the answer is in my
> > Bentley somewhere but I thought I  might get a more complete answer
> > from someone who has BTDT.
> >
> > TIA  Jerry
> >