Hot Water Tank Fumes/Soot

[Kinzua66]

I have a 2007 3500RL. My wife and I were out camping last weekend and I noticed a smell outside. I walked around the camper and it was coming from the hot water tank. Not only did it smell, there was a black soot streak going up the side of the camper. Are there any adjustments that I can make to the tank to keep it from burning rich?

[hankpage]

Sounds like it needs a cleaning. Perhaps insects moved in. Spiderweb does not burn away and they seem to like the smell of gas.

[Ron]

X2 mud dobbers etc. Ron

[SteveC7010]

Clean the large "U" shaped burn tube first. Spiders like to nest in there.

If that doesn't work, then the air mix tube may need cleaning or adjustment or both.

[Cool Canuck]

Sounds to me like the gas valve may have failed and does not completely shut down. Hopefully it is just bugs. The valve is not cheap.