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Old 02-16-2015, 07:37 AM   #1
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Woodstock , Georgia
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Black Smoke

I have a 1987 Excella. I have a black smoke coming from the water heater vent. I turned off hot water heater. I would appreciate any input before I call the repair company.

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Old 02-16-2015, 08:12 AM   #2
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1991 34' Excella
Princeton , New Jersey
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Most likely some thing or someone has gotten into the burner tube and changed the air ratio. Spiders like to build nests in there. Stink bugs hold family meeting in there.

remove the tube and inspect. Try not to move the adjustment slide when you do this. This assumes the flame was right before the problem and once the tube is clean and put back on things should be fine.

2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 02-16-2015, 08:24 AM   #3
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Virginia Beach , Virginia
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Propane itself is dirty - and will build up in the exhaust side of the unit. Because I fulltime, I tend to have a bit more problem than some others with this. Your water heater needs a good cleaning - and probably scale removal from the bottom. (I'm lazy and can afford to hire a mobile RV company that visits my home campground frequently. The greasy dirty mess that comes out when the man cleans it convinced me that it's a chore I like leaving to him. Once a year or so does it for me. )
Today is a gift, that's why they call it the present.
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Old 02-16-2015, 08:35 AM   #4
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Woodstock , Georgia
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My wife and I love our 1987 34' Excella. I appreciate the prompt response from both HowieE and Foiled Again. Thank you for your time and assistance. The unit will now receive a good cleaning.
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Old 02-16-2015, 08:44 AM   #5
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1998 30' Excella 1000
Livingston , Texas
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I had soot coming out once. It turned out that the tube with the air mixing slots was not perfectly aligned with the brass orifice fitting that it slides onto. It was just a fraction of an inch out of alignment. Visually, it would be hard to notice if you did not look carefully at it. Got it lined up. Soot went away.
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Old 02-16-2015, 10:11 AM   #6
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Thanks Siegmann for your reply. I will check the alignment.

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