Date: Thu, 8 Apr 1999 20:31:09 +0800
Reply-To: Steven Cu <steven@PWORLD.NET.PH>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Steven Cu <steven@PWORLD.NET.PH>
Subject: Re: Air Conditioning Electrical Problem
Content-Type: text/plain; charset=ISO-8859-1
Gordon,
My guess is either the electromagnetic clutch is starting to short or
your radiator fan is shot. Another guess, is You said " it trips when you
are not in motion" indicates not enough air is entering your condenser,
causing the high pressure cutoff switch to turn off the compressor.
Changing the fuse will not solve the problem, it will actually make things
worst by putting the strain on your wires w/c could melt. You would also
like to check if your system is overcharged with refrigerant. Let me know
how thing s go with the A/C mechanic. I have 10 yrs experience in Auto
motive Airconditioning and wil be more than happy to help.
Steven
82 Westy
Hopefully Virus free.....
----------
> From: Gordon and/or Cecilia Bonham <bon@BELLSOUTH.NET>
> To: vanagon@GERRY.VANAGON.COM
> Subject: Air Conditioning Electrical Problem
> Date: Thursday, April 08, 1999 7:26 AM
>
> I have a '90 Westfalia with a/c problems. When I bought the vehicle
> last month, the a/c had been inoperative for a couple of years.
> The local, non VW garage here in Green Cove Springs, Fl, repaired a
> leak, changed the receiver/dryer and the expansion valve and recharged
> the system. At that time, according to the mechanic, the system was
> working fine. He left the a/c on for a few minutes and then noticed
> that the compressor was not running. Investigation showed that fuse S0,
> 50 amps, had blown and had melted the insulating support material on the
> right hand side. He replaced the fuse with a 50 amp circuit breaker and
> now the system seems to work ok for a few minutes and then trips the
> breaker. If I'm in motion the circuit breaker will not trip as soon but
> it still trips on anything but the very lowest settings.
> In the mechanics opinion I have a defective radiator fan. I checked the
> High Wattage/Low Ohmage resistor behind the left head lamp and it seems
> to be ok although it show signs of having been very hot. Hairline
> cracks in the ceramic. I believe the resistance is labeled as .09 ohms
> and .28 ohms but I am not sure.
> I am willing to buy a new/used fan if I can be sure that is the problem
> but I hate to guess with an item that expensive. The fan sounds ok (I
> think) and starts and stops in sequence with the compressor.
> I have an appointment in five days for the local VW shop but if in the
> meantime I could get some suggestions, I would appreciate it.
> Thanks for all the help in the past few weeks.
> Gordon Bonham
> Now--'90 Westfalia
> Then--'82 Diesel Westfalia
> Before Then--'73 Westfalia
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