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The Goodman 0130F00010S is a genuine OEM flame sensor (flame rod) built for the GDH80403ANBC gas furnace and compatible Goodman and Amana models. The flame sensor uses flame rectification to confirm the burner has lit; if it fails to detect flame, the control board closes the gas valve for safety. A dirty, cracked, or failed sensor is the single most common cause of a furnace that lights briefly then shuts off (short-cycling) or locks out on ignition failure. Installing a new OEM sensor restores reliable flame proving and continuous heat.
OEM sensors use the correct rod alloy and insulator rating for consistent microamp signal. Generic sensors may produce a weak or unstable signal that trips lockout. Given the low cost, OEM is the reliable choice.
Easy — Turn off power, remove one mounting screw, disconnect the wire, and swap. A common DIY repair, though a technician can verify microamp signal.