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The Goodman 0130F00010S Flame Sensor is a genuine OEM ignition-safety component for the Goodman WFM18090S5CXCB gas furnace. The flame sensor uses flame rectification to confirm that the burner has actually lit; if it fails to detect flame, the control board shuts off the gas valve to prevent unburned gas from accumulating. A dirty or failed sensor is one of the most common causes of furnace short cycling and intermittent no-heat calls.
This OEM Goodman sensor is calibrated to your furnace's control board flame-current thresholds, ensuring reliable microamp signal readings. Generic sensors may have differing rod length, mounting bracket angle, or ceramic insulator quality, leading to weak signal and nuisance lockouts. OEM guarantees the correct fit and stable long-term detection.
Rating: Easy. Turn off power and gas, remove the single mounting screw, disconnect the spade terminal, and swap in the new sensor. Total time is typically under 15 minutes. This is one of the most DIY-friendly furnace repairs available.