We are getting a lot of soot on the side of our RV from the water heater. Never had this problem before. water heater works great but not sure how to fix the soot issue. ...
Perhaps the burner flame needs adjusting, and the burner tube needs cleaning. Flame should be mostly blue and not much yellow. There should be a procedure in your owners manual for cleaning. Mine says to adjust the flame if you’re getting soot.
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