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Restore reliable ignition with the genuine OEM Goodman 0130F00010S Flame Sensor, built for the WFM18140S5DNCC gas furnace. The flame sensor confirms burner ignition by measuring the micro-amp flame-rectification signal; when it corrodes or cracks, the control board shuts the gas valve and the furnace short-cycles or fails to hold flame. This exact-fit rod mounts in the original bracket position for correct flame immersion.
Generic universal flame rods often have the wrong rod length or bracket offset, which changes flame immersion and produces weak, drifting micro-amp readings. This OEM sensor delivers the factory-spec signal the WFM18140S5DNCC control board expects, so ignition proving is stable and repeatable.
Easy — DIY friendly (2/5). Usually a single mounting screw and one push-on terminal. Shut off gas and power first. Tip: lightly polish a reused rod with fine emery cloth, but a corroded sensor should be replaced. Verify a healthy flame-current reading (typically 2–6 µA) after install.