LP Gas & High Elevation ?

We were recently camping at Crater Lake NP at an elevation of about 6000 feet. When we arrived our frig was working fine and the next morning the freezer was at -5. By the afternoon it was at 28 and the next morning it was 33. Every other gas appliance seemed to work fine but over the next 2 days the frig never would cool back down. We had full tanks and there was a flame burning in the back of the frig. Tried turning it off for a few minutes and then restarting it but still no cooling.

When we got home i took it to my local repair shop and for the last 10 days he has been checking the temp twice a day and everything is normal. He has checked the water colum pressure (11 inches) checked the thermister resistance at different temps and all is normal. He has run it off both tanks and electric, still no change.

The only thing he can offer is perhaps it was the elevation, anyone else had this problem ??

We've camped in Durango, Colorado Springs, Williams, AZ and some other high altitude spots and never had a problem. That's probably because we run our reefer on electric, not gas when we're parked. You might try the electric side and see if that makes a difference.

Only a handful of electric sites at Mazama campground and it's first come first served. Thankfully we carry one of those softside folding coolers with us.

We dry camp regularly above 9,000 feet and have never had a problem with the fridge running on gas, even with high temperatures (for that elevation)

Ditto! I leave AZ to escape the heat, that usually means lots of boondocking in the mountains above 6,7,8 and even 9000 feet. Never had a problem with the fridge on gas. Must be faulty? Good luck on the repair.

Another guess is that you weren't level and the system froze. When you got back home it had thawed out.

Just a WAG.

Hummmm

So much for that thought !

We were level so I'm sure that wasn't the problem. My tech was on the phone with Dometic multiple times and they were stumped too. He didn't want to just throw parts at it and this is a guy i trust so i guess if it happens again i will go from there. By the way, 10 days of testing cost me an even $0, so i guess i can't complain to much.

Thanks for the input !

Just a note, if you run it out of level for an extended amount of time (more than 15 minutes per our local rebuilder), it will burn off parts of the amonia coolant and permantly block the tubes. It may still work after that but it wont operate as well in hot conditions or at altitude. The damage is cumulative and the only way to fix them after that is to replace the cooling unit.
On a happier note, I was bored one winter so I pulled out my fridge to "fine tune" its install. I found that the top vent was 1/2 blocked by roof material. I also used on-line directions to improve the draft. I've had it in 106 degree temps on elect since then and it worked great! So if you get really ambitous, you may want to check the install.