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Williams Forsaire wall furnace won't light

The pilot light will stay lit, but the burner no longer comes on. I typically heard a click when the valve opens, but I'm not getting that anymore. I suspect the thermocouple, but wanted to know if there were any other items to check out, and any way to verify that the thermocouple is bad before I schlep off to find one.


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  • joe9977 Dec 17, 2008

    i have a wall unit that the pilot stays on but the heater will not lite. I replaced the thermocouple and it still will not lite.

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Replaced the thermocouple, works like a charm.

Posted on Dec 14, 2008

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