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Posted by HeatPro on December 24, 2006 at 19:52:00:
In Reply to: Re: Intermittent Weil-Mclain CG boiler posted by Mike E on December 24, 2006 at 16:50:09:
Yes. You completely misread the article. There are direct spark-to-burner and the hot surface ignitor that have NO pilot AT ALL which the article refers to. ALL systems MUST have a sensor to confirm that there is a flame to continue for any time. If the sensor does not sense the pilot flame that you have lit because it is dirty or broken, you don't get the burner to come on.