Question about Williams Heaters
15 year old Willams 3508331 makes an increasingly loud puff or mini-explosion when finishing a heating cycle (when main flame goes out).
I don't think it is dangerous yet, but would like to know the cause.
Williams, LP provider and place I bought it only say to clean it, so I have removed the whole burner assembly and blown out with compressed air a twice with no effect.
Any ideas would be appreciated
And one last thought I forgot to put in the previous that you reminded me of -
LP or propane fired units do tend to backfire when they go out. Has to do with the residual gas pressure after the valve closes. My only suggestion is to have the gas pressure measured and the regulator at the tank adjusted. I believe it should be 9.5" -11.00" W.C (water column) but I would have to pull a book to remember for sure. Proper pressure will assure minimal backfire.
Posted on Jan 29, 2009
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