[DMCForum] Re: [DML] Re: A/C cutting out

["Ryan Wright" <ryanpwright@xxxxxxxxx>]

One last question: I notice the compressor from DMCH says it includes the
accumulator and orifice tube. Is it recommended these be replaced along with
the compressor, or what? If so, why?

Since this is one of the few jobs I won't be doing myself, is there anything
I should tell the shop? Any other work I should have them do while they're
replacing the compressor?

Thank you,

-Ryan

On 6/27/06, Ryan Wright <ryanpwright@xxxxxxxxx> wrote:
>
> Thanks Harold, David & John for the replies.
>
> A rare event, I got home tonight and the A/C wasn't working when I was in
> my driveway. Usually, it's kicked back on by then (or never kicked off). I
> checked the red wire going to the compressor and it had +12V, but the
> compressor was still not cycling. Turning the A/C on and off didn't give me
> the normal click & drawdown on the engine that it usually does.
>
> I'm going to replace the compressor. It's 25 years old, it's had about
> enough. :)
>
> Thanks again,
>
> -Ryan
>
>
> On 6/26/06, Harold McElraft <hmcelraft@xxxxxxx> wrote:
> >
> >    Sounds like an electrical circuit or the clutch on the AC compressor.
> >
> > If fan speeds 1 and 2 work then the fuse that runs the clutch is ok.
> > Sometimes the clutch windings lose the ability to engage the clutch.
> > You can check the current draw by jumpering the clutch at the
> > connection at the clutch. 12 volt positive. You should get a nice
> > snap engagement which tells you there is too much resistence in the
> > circuit somewhere before the compressor. If the clutch engages slow
> > or drags or gives up after a few minutes there is probably too
> > little current draw indicating an open winding (3amps minimum) which
> > means replace the clutch or compressor.
> >
> > Harold McElraft - 3354
> >
> >
> > --- In dmcnews@xxxxxxxxxxxxxxx <dmcnews%40yahoogroups.com>, "Ryan
> > Wright" <ryanpwright@...>
> > wrote:
> > >
> > > My A/C simply cuts out sometimes when driving. The air will blow
> > nice
> > > and cold, then at random will slowly get warm. It eventually kicks
> > > back in and cools down again, sometimes after 30 seconds, sometimes
> > > after 5 minutes. Driving doesn't affect it - I can be at idle or at
> > > speed the entire time.
> > >
> > > I suspect one of the pressure switches is kicking the compressor
> > off
> > > when it shouldn't; all fans (interior blower & cooling fans) are
> > > working fine. I'm running R12 and the system is full per DMC specs.
> > > A/C shop looked at it but the problem is intermittant and they're
> > > having trouble diagnosing it, as every time I bring it in the darn
> > > thing works fine.
> > >
> > > Any advice on how I might troubleshoot this?
> > >
> > > -Ryan
> > >
> >
> >  
> >
>
>


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