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The Goodman 20171701 Drain Trap is a genuine OEM condensate trap for the AMH950453BXAC 95% AFUE gas furnace. On high-efficiency furnaces the secondary heat exchanger produces acidic condensate that must drain away while the trap's water seal blocks flue gases from escaping into the cabinet. A cracked, clogged, or mismatched trap causes water leaks, pressure-switch faults, and nuisance lockouts.
OEM vs. Generic: The trap's internal geometry and port spacing are tuned to the furnace's inducer pressure and drain routing. Generic universal traps often require adapters, sit at the wrong height, or hold too shallow a seal — which trips the pressure switch. This OEM trap connects directly to the AMH950453BXAC's existing lines and holds the correct seal out of the box.
Install difficulty: Easy to Moderate (2/5). Power down, disconnect the drain and inducer tubing, swap the trap, prime it with water, and reconnect. Inspect and flush annually to prevent algae buildup. Takes 15–20 minutes.