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The Goodman 0130F00010S flame sensor is a direct-fit replacement rod for the WFM18090S4BXCC furnace and compatible Goodman/Amana models. Using flame rectification, the sensor confirms to the control board that a flame is present after ignition; if it can't detect flame, the board shuts the gas valve for safety. A dirty, corroded, or cracked flame sensor is one of the most common causes of a furnace that lights briefly and then shuts off (short cycling).
This genuine Goodman OEM sensor matches the exact rod length, bend, and insulator required for a reliable microamp signal. Generic sensors may sit at the wrong flame position or produce a weak signal, leading to intermittent lockouts. For dependable ignition, OEM fit yields the most consistent flame detection.
Easy (1/5). Turn off power, unscrew the single mounting screw, unplug the wire, and install the new sensor in the same position. About 10 minutes with a 1/4 in. nut driver. If a furnace short-cycles but you're not replacing yet, gently cleaning the rod with fine abrasive pad often restores operation — but a cracked insulator requires replacement.