Marc Posted March 5, 2010 Report Share Posted March 5, 2010 Natural gas powered residential oven appliance: Yesterday's inspection revealed a large amount of pure white residue on the oven surfaces that were immediately above the burner. A google search yielded several possibilities, one was aluminum oxide which came from the oxidized interior walls of the aluminum gas line that was feeding the pilot. I don't recall if the main burner was fed by an aluminum line also but the residue does appear to be centralized directly above the pilot. Can anyone confirm the aluminum oxide theory? Click to Enlarge 39.39 KB Marc Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted March 5, 2010 Report Share Posted March 5, 2010 My guess is zinc oxide from the deflector and the burner Quote Link to comment Share on other sites More sharing options...
Tim H Posted March 5, 2010 Report Share Posted March 5, 2010 My guess is zinc oxide from the deflector and the burner Yep, there is likely an area in the center of the oxidation where the plating has worn/burnt through to the base metal. Once that happens, it's on. Tim Quote Link to comment Share on other sites More sharing options...
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