I'm not yet one of those dumping the Dometic Fridge. Mine has worked
well in the past. of course I haven't used it this year, what with my
camper being laid up for 4 months due to a dead engine.

So I had noted that fridge wouldn't start on propane when I was
inspecting things. More importantly it wasn't actually sparking to
light the propane. Knowing this would require pulling the fridge, I
had put it off for a few months until I had the time to devote to the
project.

Now that I'm on holiday from work (some would call it a vacation), it
was time to pull the fridge, and inspect. I had previously (couple of
years ago) replaced the sparker, after the wire to the sparker had
frayed and allowed it to catch on fire (quickly doused with a spot of
halon.) So I doubt it was the combustion chamber (though odder things
are possible.) Still the fridge worked fine on AC and DC. So it was,
find out what was the matter with the ignition circuit.

So I pulled it and started inspecting. To make a short story, long...
it was the ignitor. This is a black capsule that sits on top of the
fridge, and actually sends the current to the sparker. In my case, it
was obviously damaged (melted plastic, discolored pc board.) Since
this is a sealed unit, I ordered a replacement from GoWesty.

I'm thankful that we have good vendors to get these miscellaneous
parts from. Helps keep our beasties on the road.