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The genuine Goodman 0161F00046 Condensate Drain Trap is the OEM trap assembly for the AMES921005CNAA 92% AFUE furnace and compatible Goodman/Amana condensing models. In a high-efficiency furnace, the secondary heat exchanger produces acidic condensate that must drain away while maintaining a pressure seal against the combustion/venting system. This trap provides that water seal — a clogged or cracked trap causes water leaks, pressure-switch faults, and ignition lockouts.
OEM vs. Generic: The OEM trap is molded to the precise port spacing, inlet/outlet diameters, and internal float/seal geometry of your furnace. Aftermarket universal traps frequently require adapters and can leak or hold the wrong water column, triggering pressure-switch errors.
Install Difficulty: Moderate — disconnect the condensate lines and drain tubing, remove the old trap, prime the new trap with water, and reconnect. Verify all hose clamps are tight and the trap drains freely. Clean or replace annually to prevent seasonal clogs.