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Old 12-07-2014, 08:11 PM   #1
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Water Heater question

My 2000 coach water heater is getting the side of my coach black, like to much heat or flame. Anyone have any ideas? Maybe time for a new one?
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Old 12-07-2014, 08:21 PM   #2
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Sounds like time for a a good cleaning and burner adjustment.
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Old 12-07-2014, 08:53 PM   #3
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Black soot from a gas burner means incomplete combustion. Either the burner is very dirty not allowing proper air to mix with the gas or the gas pressure is to high. If burner or pilot orffices are to large combustion also can be effected. Gas appliance burning like this put out lots of carbon monoxide so are also dangerous.
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Old 12-08-2014, 07:13 AM   #4
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They are not expensive to replace and at 15 years old the tank is probably corroding anyway. I replaced mine last year, just in case, and it wasn't that hard. My electric element is now working, so I don't use the propane burner much either.
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Old 12-08-2014, 11:32 AM   #5
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Gators, do you have a propane or diesel water heater?


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Old 12-08-2014, 04:00 PM   #6
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It's propane.
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Old 12-08-2014, 05:14 PM   #7
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Ok, the black is not uncommon in the Aqua Hot diesel. I am not familiar with the propane, I am sure someone here is,


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Old 12-08-2014, 09:56 PM   #8
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You have some type of burner problem, and it could be that your manifold is shot or out of adjustment. I just replaced the heater in my 03. It was sooting and the electric element was shot. Not too bad of job, but the thin foam on the inside of the door cover disintegrated and I'm waiting for some from Suburban. I have full body paint and a swirl over the door and didn't want to get into repainting a door kit. Check ebay for water heaters. Mine was an SW10DE, after I bought it I got wondering if a 12 gallon heater would fit in the hole. I rebuilt the plumbing under the sink when I had the heater out.
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Old 12-09-2014, 11:52 AM   #9
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Thanks for all the info.
Looks like a new one is on my Christmas list.
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Old 12-09-2014, 04:19 PM   #10
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The problem is the Water Heater is not getting enough Oxygen, and the propane is not getting a proper burn. It could be the main Propane pressure regulator that is not operating properly and in need of adjustment or replacement.

You should take it to an RV Repair Center or Propane repair center which has someone who is qualified to test and repair the propane system before you replace the water heater.
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Old 12-09-2014, 04:28 PM   #11
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I would take out the burn tube, clean it out and put it back in. This will take about 10 minutes to do. Then light up the heater and check for a nice blue flame. Alot of times spiders nest in the tube and it doesn't get the right mixture flow air to propane. I would at least try this before looking at a bigger problem or more expensive fix. Start with the simple stuff first.
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