Atwood lp Stove Flame starts to die

I will try to fabricate a tubing/water/manometer, if this indicates the stove regulator is the issue, finding available replacement stock may be an issue. Looks like the regulator (Dometic 51062) is out of stock everywhere. Used regulators on eBay don't sound like a good option.
Any suggestions on where to purchase this regulator?

Pmlevine.
It is pretty clear that the fuel pressure is dropping.
You can measure the pressure. All you need is a yardstick, some clear tubing and some elastic bands. Size the tuning so it can be pushed onto one of the burner jets. Use the rubber bands to hold the tubing to the yard stick. Put water in the tubing. You have just made a Manometer. A very common engineering tool.

Now, turn the gas on. The yardstick will make figuring the difference between the levels real simple. It should be 11". (Anybody that works with this will call that 11"WC - Water Column.)

Does it start out there? Yes is good.
Does it stay at that level with a burner going? No is bad.

Now you just need to find out why it isn't staying at 11". Crud in the regulator is a common issue, but seldom with anything so new. Regulators are typically not serviceable, but the are cheap to buy and replace.

Matt

Guys, the TT in question is a 2016 Winnebago Micro Minnie. The stove is a Dometic/Atwood model RV-1735 BBP. Looks like it is a rubber hose running about 15 feet under the TT.
I can do a leak test on the stove regulator, but don’t have the gear to check regulator pressure. Looks like I can buy another regulator (#51062), and install/seal the connections.
I think the oil particulate from the lp/rubber hose sounds like this may have impacted the regulator…

Hi,

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pmlevine wrote:
With both lp tanks full, and performing bubble leak tests on the outside hose connections and regulator (none detected), Happens on all the burners. Any ideas?

We really need more info, year, model of the camper, and model of the stove helps too, but here are some big picture things.

You said, a bubble leak on the outside hose connections; some of the newer campers are using rubber hoses as the main gas lines under the camper. Meaning many and lots of hoses, not just a single hose from the outlet of the regulator to the main 1/2" sch 40 hard pipe gas line with flexible copper tubing runs to the appliances or years ago. Does your camper have long runs the length of the camper with a rubber hose?

Over time, LP gas brings oil out of the rubber hose, and that oil can start clogging things up. I have this exact issue on a 6 ft long rubber hose from a portable 5 lb tank to my BBQ grill and outside stove. BUT, it does take years to create that much oil.

As was stated by the other poster, there is a 11" WC step-down to 10" WC stove regulator in the stove itself to help create even burner gas flow when other appliances start and stop. Not knowing how old your camper is, Atwood had different brands of stove regulators over the years. And for the newer ones, since Dometic took over, I have little faith they will regulate at all. You really need a LP gas gauge or manometer to test the one you have rather than just changing it. The old one may be working and the problem is elsewhere.

What elevation above sea level is the camper at when this problem acts up? There have been several issues reported on the Dometic/Atwood stoves that the burners will not work above 4,500 to 5,000 ft. And Dometic tells them they won't work.

Give us some more to go on to help better.

John

pmlevine wrote:
With both lp tanks full, and performing bubble leak tests on the outside hose connections and regulator (none detected), I have an issue with our Atwood lp stove in our TT. I replaced the lp tank regulator but this did not resolve our issue: The burner flame starts fine right away, ignites high, I can regulate the flame down to a good blue cooking flame, but after about 5 minutes the flame diminishes and turns yellow. Happens on all the burners. Any ideas?

how old is the camper/trailer/5th wheel

could be lots of things and some of them age/brand plays into.

There is a regulator in the stove as well.