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The Goodman 0161F00046 is a genuine OEM condensate drain trap for the Amana AMES920603BNAA high-efficiency gas furnace and compatible Goodman/Amana models. In a 90%+ AFUE furnace, the drain trap collects acidic condensate from the secondary heat exchanger and induced-draft system, maintaining the proper water seal so flue gases can't escape while allowing condensate to drain freely.
Drain traps are furnace-specific in port size, orientation, and float/seal design. This OEM Goodman trap fits the factory drain routing exactly. Aftermarket or improvised traps frequently leak, clog, or break the water seal — causing pressure-switch faults and lockouts.
Moderate (3/5) — Requires disconnecting condensate lines and pressure-switch tubing, then reseating gaskets without leaks. Prime the trap with water before startup. Recommended for experienced DIYers or a licensed HVAC technician.