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The genuine Goodman 0130F00010S Flame Sensor confirms burner ignition on your GCH91155DXAC gas furnace by generating a micro-amp flame-rectification signal the control board reads to keep the gas valve open. A dirty, corroded, or failed flame rod is the single most common cause of a furnace that lights briefly then shuts off — the classic short-cycle and ignition-lockout complaint. Installing a fresh OEM sensor restores a strong, stable flame signal.
Universal flame sensors often use the wrong rod length, bracket angle, or terminal, producing a weak signal that trips lockouts even when new. This OEM rod matches Goodman's exact burner geometry and mounting, delivering the full flame current the board expects and protecting your warranty.
Easy (2/5). Shut off gas and power, remove the single mounting screw, unplug the wire lead, and install the new sensor. Avoid touching the rod with bare fingers. Restore power and verify a steady flame with no lockout. If you are uncomfortable working near the burner, hire a licensed HVAC technician.