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Old 03-02-2022, 08:58 PM   #1
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Brand: Thor Motor Coach
Model: Chateau 23U
State: North Carolina
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THOR #18547
Propane regulator

Good Afternoon.

I have noticed that the flames from the stove burners have a lot of "yellow" in them and no longer just blue. This happens on all 3 burners. Also, I have soot on the bottom of my pans. I am more concerned about soot on the refrigerator burner than the stove.
An internet search leads me to believe that I may have a problem with my regulator.
According to Thor Owner Website, it appears that I have a Fairview 9950 or 9959 regulator on my 2017 Chateau. That would make the part at least 5 years old.

Is this likely the problem?

Is the regulator adjustable and would it require a manometer?

Or is it better to just replace?

I would be comfortable replacing if that is the consensus. I recall seeing but cannot find a thread discussing what brand to use for replacement.

Thank you for your comments and advice.

James

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Old 03-02-2022, 10:17 PM   #2
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THOR #6903
I would replace the regulator
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Old 03-02-2022, 10:49 PM   #3
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I generally don't like firing the parts canon without a verified target but as cheap as a regulator is It might be the right move AFTER you get on a mechanics creeper and follow your propane lines under the coach to make sure you don't have a problem there like a pinched line. Thor has been known to do some sketchy propane line routing.
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Old 03-03-2022, 01:04 AM   #4
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When there is soot that is evidence of an incomplete burn which means there is a very good likelihood of more carbon monoxide than usual. If that appliance was in a house, the gas company would ďred tagĒ it and it would have to be repaired before it could be used again.
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Old 03-03-2022, 02:24 AM   #5
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Ted,

Yes, I'll crawl underneath tomorrow to inspect the lines. Thanks for the tip.

The regulator replacement looks pretty straightforward.

Do I stick with the same brand (Fairview) or is there something better to consider?

James
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Old 03-03-2022, 02:36 AM   #6
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Quote:
Originally Posted by JGallagher View Post
Ted,

Yes, I'll crawl underneath tomorrow to inspect the lines. Thanks for the tip.

The regulator replacement looks pretty straightforward.

Do I stick with the same brand (Fairview) or is there something better to consider?

James
None that I know of to recommend. Most times regulators are install and forget it type appliances.
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Old 03-05-2022, 12:53 PM   #7
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THOR #18547
I ordered the part from Amazon, got the Camco regulator delivered in 1 day for $39.
Very straightforward to remove and replace.

Thanks to all for the help.

James
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Old 03-05-2022, 03:42 PM   #8
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Make sure the valve is 100% open and that you have sufficient propane in the tank.
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Old 03-05-2022, 04:02 PM   #9
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Marshall Excelsior is probably the best replacement I'd recommend. Typically rv manufacturers use the absolute cheapest everything they can buy in bulk.
The issue now is Thor's towable entities, not sure if it includes motorhomes, have a recall on a brand of regulator they've installed that must be replaced which has severely limited the availability of propane regulators. Being motorhome propane tanks are hard mounted & don't require the auto changeover feature those regulators may be easier to locate.
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Old 03-05-2022, 06:09 PM   #10
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James,
Check you column of pressure at the stove. You need about 10.5 for a good flame. Might just need to adjust the regulator.
But, changing the regulator is ok, because while doing so you can check for oil in the line. Change it if oil comes out.

Try this.
Terry
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