Re: [DML] Re: What about my AC high pressure cut of switch?

[id <ionicdesign@xxxx>]

I just got my A/C recharged by a place that just works on cooling systems and they said
the compressor will only cycle if it is low on freon, DMCH also agreed. The compressor
should never cycle.

Mark



David Teitelbaum wrote:

> Not all cars have the high pressure switch and sometimes it is on the
> condensor coil on the left side. There is also a low pressure switch
> on the accumulater N:03:03. That low pressure switch also cyles the
> compressor on and off if everything is set-up properly. If you can't
> see the leak it is possible it is one of the hoses running front to
> back in the frame with the high pressure hose on the left being the
> most likely. The high presure safety valve is on the back of the
> compressor unless it was removed to run the F-134. The hose can be
> replaced without removing the body but you have to bend the flange on
> the frame to do it (don't worry, you can bend it back and touch it up
> with some paint). Read N:01:01 the second paragraph. If at all
> possible the best thing to do is to return the system back to R-12. In
> your case you should also replace the dryer/accumulater, the orifice
> tube, and the service valve cores along with draining and replacing
> the oil and all of the "O" rings. You may also need a new low pressure
> switch or fix the problem in the wiring so it works. The system can be
> pressureized with nitrogen or dry air and leak-tested using soapy
> water or a leak-test solution to look for bubbles which would indicate
> a leak. Since the system was running -134 you may find ALL of the "O"
> rings must be replaced with the "green" ones. The black ones (Buna)
> don't like the 134 and start to leak. You might consider finding
> another shop to do this right.
> David Teitelbaum
> vin 10757
>
> --- In dmcnews@xxxxxxxxxxxxxxx, Michiel Böhmer <michiel.bohmer@xxxx>
> wrote:
> > Dear list-members,
> >
> > I'm lost here. I have AC troubles and I can't find my answers in the
> archive.
>
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