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Old 06-04-2011, 03:02 PM   #1
MrLeavingAK
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Propane Regulator

We are the proud new owners of a 2011 Mountaineer 346LBQ and we love it so far but have noticed one nagging problem. Ours has the automatic tank switch for the propane and here lies the problem. One of our tanks seems to develop tons of condensation on it and the auto switch changes it to the other tank. Problem is, the original tank still has lots of propane in it. So I go and switch it back to the original tank and run the stove and it works for a bit until it does the same thing again. It only does it on one tank, the one farthest from the main switch regulator.

Any ideas and how to fix it? It is chilly outside, maybe in the 40's.

Thanks!

Jeff
 
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Old 06-04-2011, 03:55 PM   #2
sailer
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We had to change our regulator on a 2009 from a 18 lb to a 30 lb per keystone so maybe you need a new regulator, Now camping wourld gave me a price of 129.00 plus 63.00 install and i got it fronm north trail for 14.67 and put it on myself

sailer
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Old 06-04-2011, 04:16 PM   #3
MrLeavingAK
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This is something they would warranty I would think on a new unit??
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Old 06-04-2011, 07:28 PM   #4
Wayne and Carolyn Mathews
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This must be the season for propane regulator troubles. Yesterday we had our third new one within a 6-week period installed. Since we're on our way to the 7 Feathers Rally in Oregon, we're hoping this one actually works. The first one was defective, the second one was "full of plastic particles and oil," and the new one . . . well, the third one's a charm, right?

I am going to be VERY unhappy if we have to work with only one propane tank again instead of the two tanks.

Carolyn
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Old 06-05-2011, 12:38 AM   #5
bobsals
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Greetings, propane is liquid cryogenic fuel, meaning it gets colder when it boils. It boils when pressure is released during usage. Then when it boils the gas vapor is formed and flows from the tank. So, if you are using the tank and it starts to sweat, that means you are using fuel from it and it is humid outside. Perfectly normal for a propane tank. Just like a cold glass of beer on a hot summer day. Bottom line, I think you may have a sensitive Excess Flow Valve (EFV)in your tank. What happens there is if the EFV is defective, it trips when it's not supposed to, then tank outlet pressure is reduced to almost zero, the auto-changeover regulator thinks it's empty and switches to the other tank. What I would do is swap tanks to see if that corrects the problem with that side. If the problem goes over to the other side with the same tank then you can just replace the tank. Good Luck
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Old 06-05-2011, 07:11 AM   #6
MrLeavingAK
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Bob,

That all makes sense. The weird thing is only one tank sweats. The other does not, even when being used.

I will try switching them and see if that helps.

And I checked the regulators. They are 30lb regulators.
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Old 06-05-2011, 08:02 AM   #7
bobsals
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That's a good one! The only thing I can say is swap tanks and see if it still happens. If this is the original propane fill on a new unit then the tank may not have been properly purged of air on the initial fill and there is moisture and air in the tank. If that is the problem, swaping tanks should tell for sure.
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Old 06-26-2011, 09:24 PM   #8
MrLeavingAK
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Tried swapping the tanks this trip and it's still switching over prior to the tank being empty. The factory thinks it's a regulator and so do I. Hopefully we will get this fixed ASAP.

Thank for all the suggestions.
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Old 06-27-2011, 12:02 AM   #9
bobsals
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Same tank, or same side? If it's the same tank, then I would say there is air in the tank and it's icing up inside the valve. If it's the same side, then it's probably the pigtail. Kind of doubt it's the red regulator, but I have been wrong before. (just ask my wife)
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Old 06-27-2011, 12:25 AM   #10
Jdrobone
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Had a similar problem, proved out to be the pigtail.
Jerry
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Old 06-27-2011, 01:35 AM   #11
HOOK
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Dealer replaced ours when it was very new under warranty.
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Old 06-27-2011, 07:29 AM   #12
MrLeavingAK
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Same side. I never considered the pigtail. Hmmmm. I may have them replace both as it's still under warranty. Thanks for all the help and advice!
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