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The Goodman 0130F00010S is a genuine OEM flame sensor (flame rod) designed as a direct-fit replacement for the GMT045-3A furnace and compatible Goodman/Amana models. The flame sensor uses flame rectification to confirm that the burner has actually lit; if it cannot detect the flame, the control board closes the gas valve within seconds. A dirty, cracked, or degraded sensor is the single most common cause of furnace short-cycling and ignition lockouts.
The genuine OEM 0130F00010S matches the exact rod length, position, and connector this control system expects, ensuring a reliable microamp signal to the board. Generic sensors with the wrong rod geometry or lower-grade metallurgy often produce a weak flame-sense signal that degrades quickly, bringing the short-cycling right back. For a reliable long-term fix, OEM is the better value.
Easy. Turn off power to the furnace, remove one mounting screw, unplug the sensor lead, and install the new sensor. Allow 10–15 minutes. Handle the rod by the ceramic base only. A great DIY repair for most homeowners; call a technician if the fault persists after replacement.