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The Goodman 20171701 is the factory condensate drain trap engineered for the AMS950703BXA high-efficiency gas furnace. This trap collects and channels condensate away from the secondary heat exchanger, maintaining the water seal that prevents flue gas from escaping into the drain line. A cracked, clogged, or missing trap is a common cause of pressure-switch lockouts and water leaks at the furnace base.
The OEM Goodman trap matches the original port orientation, barb sizes, and internal float geometry exactly, guaranteeing a proper condensate seal and correct pressure-switch operation. A generic universal trap costs less and works in many 90%+ furnaces, but may require adapters and hose trimming to fit. Choose OEM for a guaranteed drop-in replacement.
Easy (1 of 3). Power down the furnace, disconnect the condensate hoses, remove the old trap, and snap the new one in place. No special tools required — most homeowners complete this in under 20 minutes. Prime the trap with water before restarting to establish the seal.