Date: Sun, 14 Jun 2015 15:24:57 -0700
Reply-To: Raymond Markett <raym02@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Raymond Markett <raym02@YAHOO.COM>
Subject: Re: 1985 Westy A/C compressor doesn't turn
In-Reply-To: <vanagon%2015061401314747@GERRY.VANAGON.COM>
Content-Type: text/plain; charset=us-ascii
David,
Using your advice I checked the fuses. None where blown, but some had oxidized contacts. I clean and/or replaced the contacts and fuses. Now when she's warmed up I get and increase in idle speed and radiator fan speed when I crank up the A/C. Still no action at the compressor. I would expect it to cycle occasionally even if the refrigerant is low, but I don't know if that is how it's designed. I plan to check voltage at the compressor, and try to determine if there is enough refrigerant in the system to keep the pressure switches happy. Ironically, the afternoon heat is making me call it a day but I plan to get back to it next week. Any additional advice would be appreciated.
Thanks,
Raymond
Sent from my iPhone
> On Jun 13, 2015, at 10:31 PM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:
>
> Schematic for '84/5 is on 97.137-8. It refers to S7 and S10, both of
> which are located on 97.66 for the '85. S7 is the radiator fan fuse
> and the A/C page wiring replaces that on 97.66. S10 comes from the
> load reduction relay so that power to the A/C control system is only
> available when ignition is on and not cranking.
>
> Blowers running means S10, S15, Evap blower relay, input side of evap
> fan switch are all good. Turning evap fan switch on powers the A/C
> thermostat and *also* activates the radiator/condensor cooling fan
> relay, operating the radiator fan on high speed through S14. When
> the thermostat is closed it feeds the normally-closed compressor
> cut-out relay and thence the compressor clutch and idle-up
> switch. The radiator fan is already running at high speed, but if
> the radiator thermo-switch should call for high fan, the compressor
> cut-out relay will activate and dump the compressor.
>
> Yours,
> David
>
> At 03:31 PM 6/13/2015, Raymond Markett wrote:
>> Hi All,
>>
>> The A/C compressor on my 1985 Westy doesn't turn. The compressor
>> clutch doesn't even attempt to engage. The blower in the A/C
>> cabinet runs, but that seems to be it. I don't hear any change in
>> the radiator fan when the A/C is turned on. I looked in the Bentley
>> but the A/C section covers 1986 and later.
>>
>> Is anyone out there familiar with the 1985 A/C system, or have the
>> electrical and mechanical manual?
>>
>> I'm trying to find out where the fuses, relays, etc. are located for
>> the 1985 year. I see the 1986 has some electrics in the D pillar
>> behind the cabinet. Does the 1985 have the same arrangement? If so,
>> are there any external test points where one could use a volt/ohm
>> meter to test the hidden electrics before dismantling the cabinets
>> to gain access?
>>
>> Thanks,
>>
>> Raymond
>>
>> Sent from my iPhone
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