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The Goodman 0130F00010S Flame Sensor is a genuine OEM flame-rectification sensor for the GCH950704CXAB and other GCH95-series gas furnaces. The flame sensor confirms the burner has lit; if it fails to detect flame, the control board shuts off the gas valve within seconds as a safety measure. A dirty, cracked, or failed flame sensor is the single most common cause of a furnace that lights briefly and then shuts down (short-cycling / flame-loss lockout).
The flame rod's alloy and length are tuned to the furnace's microamp flame-current threshold. Generic sensors often produce a weak or unstable signal, causing intermittent lockouts even when clean. The OEM 0130F00010S delivers a reliable flame-current reading the control board can trust.
One of the easiest and most rewarding furnace repairs. Shut off power and gas, remove the single mounting screw, unplug the wire lead, and install the new sensor. No calibration needed. Ideal DIY fix for short-cycling furnaces.