It's likely that the gas supply pressure is a factor in fridge performance, but I'd hesitate to assume that means that a higher gas pressure is necessarily better. What's important is getting a proper air/gas ratio. Too much fuel and combustion will be sub-optimal. Indeed, there was a post here not long ago about Dometic service recommending reduced pressures for use at higher altitudes. Most likely there is a range of operating pressures appropriate to the unit - perhaps 2.0 "wg (+/- 1.0"wg); within such a range you will have optimal combustion - and performance; outside the range and performance will deteriorate. -Wes > Date: Sat, 22 May 1999 18:34:52 -0700 > From: Mark Drillock <drillock@EARTHLINK.NET> > Subject: Re: Let's fix our Dometic refigerators > I suggest that you wait on taking your fridge in for repair. I think that > the difference in performance may be due to the pressure of the propane. > The tank has a 2-stage regulator that sets the pressure level. The > fridges that I know of that cool really well have both had this regulator > changed to the new model, as the old model is no longer made. Is yours > still the original square shaped Marshall #260? The new type is rounded > and is a Marshall #290. In both cases these regulators are adjustable. It > is possible that the fridges that cool best have the highest amount of > propane supplied to the fridge burner. The regulators may be wearing > somehow and lowering their output pressure. We need to find the answer to > this question as taking the fridge in for repair will gain us nothing if > the problem is actually tank related. Does anyone know how I can measure > the pressure of my regulators? I have a Westy with the original regulator > that does not cool nearly as well as my Camper with the new type of > regulator. I would like to compare the pressures to see if this is the > reason. > > Mark Drillock > > Rubatoguy wrote: > > > > My fridge lit right up on propane, and after 24 hours of operation had > > chilled down to 50 degrees. > > Seems that my fridge will cool to just below 20 degrees of the ambient > > air temp or 48 degrees, whichever is warmer. > > > > My thought is that this is not as good as it can be. Since I checked > > everything else, and had previously upgraded to a more powerful fan in > > the back of the fridge, I'm assuming that my only option now is to take > > it to a service center? > > > > Todd > > > > '88 Westy > > > > Is there a way to test to make sure that the door is sealing correctly? > Wes Neuenschwander Seattle, WA wesn@eskimo.com |
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