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The Goodman 20171701 Condensate Drain Trap is a genuine OEM assembly for the GCH950905DXAB 96% AFUE gas furnace. High-efficiency furnaces produce acidic condensate that must drain away while the trap's water seal blocks flue gases from escaping the drain line. A cracked, clogged, or algae-fouled trap causes water leaks, pressure-switch faults, and lockout codes — this direct-fit replacement restores proper drainage and sealing.
The OEM Goodman trap matches the exact port locations, hose barb sizes, and internal geometry of your furnace's drain system. Generic or universal traps often require adapters and can disrupt the pressure-switch signal. For leak-free, code-correct drainage we recommend the genuine OEM part.
Moderate (2/5). Turn off power, disconnect the condensate hoses and pressure-switch tubing, swap the trap, and prime it with water before restart. Plan about 30 minutes; label the hoses first to avoid mix-ups.