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Where is the Flame Detector?
I have a York Gas Furnace, Model P4CSD12N08001A that has symptoms of Flame Detection Failure. I have dismantled the burner system to remove the pilot light assembly. I cannot find a Flame Detector unless it is built into the Ignitor. The assembly contains the Pilot Flame opening and a spark igniter but there is not a visible Flame Detector. Can you tell me if the Igniter also serves as Flame Detector on this model?