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The Goodman 0161F00046 Condensate Drain Trap is a genuine OEM part for the VCSS961005CNAA high-efficiency (90%+) gas furnace. In a condensing furnace, the secondary heat exchanger produces acidic condensate that must be drained away while keeping combustion flue gases sealed inside the system. This trap does both — it channels condensate to the drain line while its water seal blocks flue gas from escaping into the cabinet.
The OEM Goodman 0161F00046 matches the factory port spacing and hose-barb diameters exactly, so it seats without leaks. Generic universal traps often require adapters and are prone to seepage that can trip the pressure switch. Because a failed trap causes intermittent shutdowns and potential flue-gas issues, OEM is strongly recommended.
Easy-to-Moderate (2/5). Power down the furnace, disconnect the drain hoses and clamps, remove the old trap, and clean any sludge from the lines. Fit the new trap, re-secure the hoses, and prime it with a small amount of water before restarting. Plan for 20–30 minutes.
Always disconnect power and follow local codes when servicing condensate systems.