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The Goodman 20171701 condensate drain trap is a genuine OEM replacement component engineered for the ACVC90905DXAB high-efficiency (90%+ AFUE) gas furnace. As a condensing furnace produces acidic water vapor during combustion, this drain trap captures and routes condensate safely away from the heat exchanger and inducer assembly, while its water seal blocks flue gases from escaping into the cabinet. A cracked, clogged, or missing trap is one of the most common causes of nuisance lockouts and water leakage.
This is the factory-original Goodman part, guaranteeing the exact port spacing, water-column seal depth, and mounting orientation specified for your furnace. Generic or universal traps often require adapters and can fail to maintain the proper trap seal, leading to pressure-switch faults. Choosing OEM eliminates guesswork and protects your warranty-spec performance.
Easy (DIY-friendly). Replacement typically takes 15-30 minutes with basic hand tools. Power off the furnace, disconnect the inlet and outlet drain hoses, remove the old trap, install the new 20171701, prime it with water, and reconnect. We recommend flushing the drain line during service.