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 � 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