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

[Brandon Rogers]

Except my radiator fan and radiator fan wiring harness are also from the
200 20V....so...???

Brandon 

-----Original Message-----
From: Martin Pajak [mailto:martin at quattro.ca] 
Sent: Friday, June 09, 2006 11:19 AM
To: djdawson2 at aol.com
Cc: brogers at terrix.com; ekellock at gmail.com; urq at audifans.com
Subject: Re: [urq] : A/C - fan always on?


Dave,

I don't think 3B harness (engine) has anything to do with rad/A/C... I
think in Brandon's case that is still handled/controlled by the original
system.

Finally got the A/C recharged on the '83 and the fan runs all the time.

Cheers
-- 
Martin Pajak

http://www.quattro.ca

1982 Audi Ur-quattro (50,000 mi) new project
1983 Audi Ur-quattro (85,000 mi) Concourse d'Elegance
1985 Audi Ur-quattro (212,000 km) Euro spec. import mit 3B :) 1987 Audi
4000s quattro (205,000 km) wintervagen mit 7A :)


> djdawson2 at aol.com
> Brandon,
> The 91 20v runs the fan full time.  Since you have that same wiring 
> harness, I would expect it to behave the same way as a '91 20v.  FWIW,

> the fan running isn't just for cooling the engine, but to keep the 
> high side pressures within an acceptable level.
>>
> -----Original Message-----
> From: Brandon Rogers <brogers at terrix.com>
> To: 'Ed Kellock' <ekellock at gmail.com>; urq at audifans.com
> Sent: Fri, 9 Jun 2006 10:11:21 -0600
> Subject: Re: [urq] : A/C - fan always on?
>
>
> So maybe my system _is_ working properly  - but I still like the idea 
> of the fan running constantly, personally.  I'm really thinking I want

> to add a manual fan switch but my Wire-Meister doesn't like that 
> idea....
>
> Brandon
>
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On 
> Behalf Of Ed Kellock
> Sent: Friday, June 09, 2006 9:23 AM
> To: urq at audifans.com
> Subject: Re: [urq] : A/C - fan always on?
>
>
> My '85 urq does not run the rad fan automatically when the a/c is 
> switched on, but given the condition of it when I acquired it, I 
> wouldn't be surprised to find a melted relay as mentioned by someone.
>
> Ed
>
>
> On 6/9/06, Andrew Finney <afinn1 at gmail.com> wrote:
>>
>> 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
>>
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