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The Goodman 20171701 is a genuine OEM condensate drain trap designed for the WFD195070S4CAB high-efficiency gas furnace. On condensing furnaces, the drain trap safely routes acidic condensate away from the heat exchanger and inducer while maintaining the pressure seal the system needs to operate. A cracked, clogged, or aged trap can trigger pressure-switch faults, water leaks, and no-heat lockouts — this factory replacement restores proper drainage and reliable operation.
OEM (20171701): Exact port geometry and sealing surfaces for a leak-free fit and correct pressure-switch behavior. Best choice for guaranteed compatibility.
Generic Equivalent: Budget-friendly and functionally comparable, suited to general repairs where a factory-exact fit isn't required.
Difficulty: Moderate. Requires disconnecting drain hoses and clearing the condensate path, typically 30–45 minutes. Shut off power and gas, and prime the trap with water before restart. Professional service recommended for condensate systems.