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The Goodman 0161F00046 Condensate Drain Trap is a genuine OEM replacement for the AMSS960403ANAA high-efficiency condensing furnace and compatible Goodman/Amana models. In a 96% AFUE furnace, combustion produces acidic condensate that must drain freely; the trap maintains a water seal that blocks flue gases from escaping while allowing condensate to flow out. A cracked, clogged, or wrong-fit trap triggers pressure-switch lockouts and nuisance shutdowns.
The genuine OEM trap matches the exact port spacing, seal depth, and barb sizing of the original assembly, so it seats without leaks or adapters. Generic traps frequently differ in inlet/outlet geometry, causing slow drainage, air leaks past the seal, and repeat pressure-switch faults. Because a proper water seal is essential to safe venting, OEM is strongly recommended here.
Easy–Moderate (2/5). Plan 20–30 minutes. Power down the furnace, disconnect the condensate tubing, remove the old trap, and install the new one — priming it with water to establish the seal. Verify all hose clamps are snug and check for leaks on the next heat cycle. Use a licensed technician if you are not comfortable working around the condensate and pressure-switch tubing.