Date: Sat, 01 Sep 2007 21:54:59 GMT From: "Mrcheerful" <nbkm57nospamail.com> Subject: Re: [XP] Sporadic aircon
"still me" <wheeledBobnospamo.com> wrote in message news:9jmjd394vo9pbluiiddolpaekbraaqfsddnospamcom... > On Sat, 01 Sep 2007 21:53:39 +0100, Colin Stamp > <col.dustbinnospamp.plus.com> wrote: > >>I'm not sure whether the pressure readings actually rule out a >>refrigeration problem or not. Could it be that low refrigerant would >>cause it, for instance? >> >>I think I need all the help I can get on this one... >> >>Cheers, >> >>Colin. > > Colin: > > I can't convert bars to psi (perhaps you can help) but 7.3 vs 7.1 is > too small of a difference to be the cause. It is interesting that it > changes but that kind of a pressure change is very small. > > Also, the readings that matter are the high side and the low side, > measured at the fittings. If you get a set of gauges and some long > hoses I think you could read this while driving. > > Have you considered a possible mixing valve issue? Maybe the A/C is > working but warm air is being sent to you? > running: a high of 10 -15 bar and a low of 2 is about right. the standing pressure will always be the same related to ambient temperature. 5.6 bar at 25 degrees c
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