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The Goodman 20171701 Drain Trap is a genuine OEM condensate trap for the GMV950453BXBA 96% AFUE gas furnace. In high-efficiency furnaces, combustion produces acidic condensate that must drain freely while the trap maintains a water seal against the negative pressure in the heat exchanger. A cracked or clogged trap is a leading cause of pressure-switch lockouts and water leaks.
OEM vs. Generic: The OEM trap is molded with the correct port geometry and float/seal design for the GMV9 cabinet, ensuring proper drainage and a reliable pressure seal. Generic traps often route incorrectly or fail to seal, producing intermittent pressure-switch faults that are hard to diagnose.
Install difficulty: Easy (2/5). Power down, disconnect the drain and inducer hoses, swap the trap, and prime it with water before restart. A quick repair for most homeowners; take note of hose routing before removal.