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The Goodman 20171701 Drain Trap is a genuine OEM condensate trap engineered for the AMV91155DXBB 96% high-efficiency gas furnace and other compatible Goodman and Amana models. In a condensing furnace, this trap collects the acidic condensate produced in the secondary heat exchanger and inducer, routing it to the drain while its water seal blocks flue gases and inducer pressure from escaping into the cabinet.
A cracked, clogged, or improperly sealed drain trap is one of the most common causes of pressure-switch faults, water leaks, and lockouts on high-efficiency furnaces. Replacing it with the correct OEM 20171701 restores proper condensate drainage and a reliable pressure seal.
OEM vs. Generic: The genuine Goodman trap matches the exact port sizes, float/seal design, and drain geometry of the AMV91155DXBB. Generic traps may not seal against inducer pressure or align with the factory tubing, leading to leaks and repeat pressure-switch trips. For a component tied to combustion venting, OEM fit is worth it.
Install Difficulty: Moderate (DIY-capable, 20–30 minutes). Cut power, place a towel to catch residual condensate, disconnect the inlet/outlet tubing, swap in the new trap, and prime it with a little water to establish the seal before restarting. Verify all connections are tight and the drain line is clear so the trap doesn't overflow.