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Old 06-30-2011, 11:26 AM   #1
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Question Black soot on water grill?

I used the hot water last night and the pilot light went out so I had to restart it. It seemed to work fine after that. This morning there is black soot all over the grill and side of the MH. My tank says it's 40% full. What is happening?
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Old 06-30-2011, 01:18 PM   #2
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I would say your fuel to air mixture is rich on the fuel side. You may have a dirty orifice or burner.
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Old 06-30-2011, 01:48 PM   #3
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you meed to remove the burney clean inside (spider webs ect) also renove jet not likely the problem it will take longer to gather tools up than the work
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Old 06-30-2011, 08:21 PM   #4
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9 times out of 10 a spider has built a nest inside the burner tube. This pretty much makes it impossible for the burner to burn cleanly and can actually damage some components. The fix is easy. Remove and clean the burner. Don't waste your time trying to blow it out. If there's a spider nest in there you can't. Remove and clean the burner! Then test/confirm it's working right when you put it back together.
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Old 06-30-2011, 08:51 PM   #5
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Thanks guys. It's pouring out now but tomorrow I will clean it out. Being in FL. it could be anything in there. LOL
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Old 07-01-2011, 11:12 AM   #6
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If cleaning the burner tube doesn't do it, adjust the little slider on the gas line that adjusts the air/fuel ratio.Either too much or too little air can cause combustion problems that result in sooty exhaust, but I would try a bit more air as my first guess.
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Old 07-01-2011, 12:40 PM   #7
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When you can get to the burner without getting soaked , make sure that the end of the thermo-couple that sits in the flame is cleaned up too, soot build up on the probe can cause issues with the pilot light.
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