Question about Williams 2509612 Ceramic Mid-Size Heater

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Pilot adjustment on Williams wall heater

How can I adjust the size of the pilot on my Williams gas wall heater? The are the words "Pilot adjustment" stamped on the exchange block but no screw only a little round blue plastic insert with a pin hole sized opening in it. Maybe the flame is at what it should be but it seems too high to me. In the dark you can see small amounts of yellow flame along with the blue. The heater has two burners one for each side. It heats two rooms. The pilot burns in a Y-shape in order to feed both sides.

Thanks a million,


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  • Anonymous Dec 28, 2008

    The Pilot is on when manually pushed in, and goes out when released to turn. Is it a defective part? What needs to be repaired?



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The insert sounds like the cap covering the adjustment screw. Pin hole is for cap removal. Wondering why flame is so high?! Shouldn't have orange flame. If heater doesn't light with lower flame... thermocouple (thing that the flame heats up) may be bad.

Posted on Jan 03, 2009


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