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Date:         Thu, 9 Aug 2007 18:28:22 -0700
Reply-To:     Alistair Bell <albell@UVIC.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Alistair Bell <albell@UVIC.CA>
Subject:      Re: Dometic woes
Comments: To: Paul Chubbuck <paul@TAKINGFLIGHT.NET>
In-Reply-To:  <000f01c7dacb$0e3af6b0$2ab0e410$@net>
Content-Type: text/plain; charset=WINDOWS-1252; delsp=yes; format=flowed

I have similar "going out" problems at higher elevations. but my fridge re-lights easily. I have done all the tricks, including jet cleaning.

one thing about re-lighting, pump the pump a lot, keep pumping as you

click the igniter, keep pumping longer than you think (30 sec) after flame lit. I installed bright ble led to replace stock green one. i can monitor flame with it, it changes intensity with combustion chamber temp and is really noticeable.

I haven't found that the air pump has enough oomph to put the flame out, so I pump it as much and as long as i need. ab

On 9-Aug-07, at 2:20 PM, Paul Chubbuck wrote:

After much work on my Dometic, it cools well. However, it is sometimes a real bitch to get started, especially at higher elevations (10,000 ft.) where I usually camp. And sometimes it just goes out spontaneously for no known reason. A few days ago, I couldn’t get it going again in multiple attempts, using everything I know about it. Then ½ day later, with much pumping and struggling, I got it started again. The flame lights right away, no problem, but it tends to go out as soon as I quit pumping. I already have cleaner the combustion box, replaced the nozzle, and blown out the intake and exhaust hoses.

On this recent trip, once I finally got it going, it would usually stay lit and cooling well for several days, though it always goes out right away if I drive.

Also, in spite of cleaning and oiling it, the pump is very stiff, so it literally wears me out keeping enough air pumped in there until it gets its own draft going.

My questions:

What would make the flame spontaneously go out, when there’s no movement, disturbance or change?

Why would it be so hard to get the draft going so that it is self-sustaining?

I’m considering getting a 12 volt aquarium air pump to do that job for me, for that first couple of minutes. Has anyone tried that?

Thanks,

Paul


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