[urq] : A/C - fan always on?

[Andrew Finney]

I just sold an '85 4000Q with perfectly working AC and it cycled the fan on
and off too. If you look at the wiring diagrams for the early AC (found in
the Haynes manual) and compare it with the diagrams for the later style AC
system in the Bentley you'll see why it cycles on and off. Doesn't mean
having the fan on high all the time isn't good for the overall cooling of
the motor, which is taxed with the AC on, but I'm almost positive that's not
how it works on the later cars. I'm sure that's how it works for the older
cars.

Andrew Finney
1983 and 1985 UrQs


On 6/8/06, djdawson2 at aol.com <djdawson2 at aol.com> wrote:
>
>   On my past '85, the fan came on all the time with the A/C on.  My
> current '85 had the A/C pulled, so I can't comment on it.  We also have an
> '86 Coupe GT in the family, and it comes on constantly with the A/C switched
> on as well... FWIW.
>
> I would still suggest that if your fan isn't on all the time with the A/C
> engaged, that you fix it so that it will.
>
> Dave
>
> -----Original Message-----
> From: Andrew Finney <afinn1 at gmail.com>
> To: urq at audifans.com
> Cc: djdawson2 at aol.com
> Sent: Thu, 8 Jun 2006 16:54:33 -0700
> Subject: : [urq] A/C - fan always on?
>
>  The pre'84 cars had the fan on at all times with the AC on. If yours does
> not turn on, one of the relays is likely melted in the glove box. '84 and
> later cars had a pressure switch up near the radiator that turned the fan on
> and off as necessary through various other circuits. If I'm wrong on this,
> please let me know, but I've owned '83, '84 and '85 UrQs and have spent many
> $$$ dealing with AC issues.
>
> Andrew Finney
> 1983 and 1985 UrQs.
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