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The Goodman 0130F00010S is a genuine OEM flame sensor built for the WFM18115S5CXCB gas furnace and compatible Goodman and Amana models. This single-rod sensor uses flame rectification to confirm the burner has ignited: it passes a tiny microamp signal through the flame back to the ignition control board. If the board doesn't detect that signal within the trial period, it shuts off the gas valve for safety. A dirty, corroded, or cracked flame sensor is one of the most common causes of short cycling and intermittent no-heat lockouts.
The genuine Goodman sensor is manufactured with the correct rod length, alloy, and insulator so it sits precisely in the flame envelope and produces a reliable signal. Generic sensors can read weak or unstable, causing the same lockouts you're trying to eliminate. For a diagnostic-grade part, OEM is the dependable choice.
Easy (1 of 3). Power off, remove one mounting screw, unplug the single sensor wire, and install the new rod — avoid touching the metal rod with bare fingers. About 10 minutes. Tip: if you're already in there, gently inspect the burner area and igniter as well.