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The Goodman B1401003S is a genuine OEM spark ignition assembly for the Goodman GUX060-3 gas furnace. This assembly combines the spark electrode and flame-sensing rod that fire directly at the burner: the ignition control sends high-voltage pulses to the electrode to light the gas, then the sensor rod confirms flame. A cracked ceramic insulator, worn electrode gap, or fouled sensor causes no ignition, weak sparking, or short-cycle lockouts — replacing this assembly restores dependable spark-to-flame startup.
The OEM Goodman assembly guarantees the correct electrode gap, sensor position, and bracket geometry for reliable ignition on the GUX060-3. The generic equivalent offers the same spark-and-sense function at a lower cost for budget repairs. Correct gap and positioning are critical, so verify alignment after install.
Easy to Moderate — typically one or two mounting screws and a spark/sensor lead. Power down the furnace, swap the assembly, confirm the electrode gap and that the tips sit in the burner flame path, then test a full ignition cycle.