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The Goodman 20171701 Condensate Drain Trap is a genuine OEM assembly for the high-efficiency AMH950704CXAB furnace and compatible Goodman/Amana models. In a 95%+ AFUE furnace, combustion produces acidic condensate that must drain away while the trap maintains a water seal to keep flue gases from escaping the secondary heat exchanger. A cracked, clogged, or brittle trap causes water leaks, pressure-switch lockouts, and intermittent no-heat calls.
The trap's port layout, float, and seal depth are matched to your furnace's drainage and pressure-switch tubing. A generic trap can misalign the hoses or hold the wrong water column, tripping the pressure switch. The genuine OEM 20171701 ensures the ports and seal match the factory design exactly.
Moderate. Power off, then disconnect the condensate and pressure-switch hoses, note their routing, remove the old trap, and install the new one. Fill/prime the trap and check for leaks and a clean pressure-switch signal on startup.