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The Goodman 20171701 is a genuine OEM condensate drain trap for the WFD195090S4CAB high-efficiency condensing gas furnace. The trap collects and drains acidic condensate from the secondary heat exchanger and inducer while maintaining the pressure seal the furnace needs to run. A cracked, clogged, or algae-fouled trap triggers pressure-switch lockouts, water leaks, and no-heat calls — this OEM assembly restores proper drainage and reliable ignition.
This trap's port layout and internal water column are matched to the WFD195090S4CAB's pressure-switch and inducer setup. Generic universal traps rarely align with the factory ports and can throw pressure faults or leak. The genuine OEM trap ensures correct drainage and a proper pressure seal.
Moderate (3/5). Power down, disconnect the condensate and pressure-switch hoses, unbolt the old trap, transfer/attach hoses to the new unit, and prime with water. Plan 30–45 minutes and check for leaks and correct pressure-switch operation on restart.