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The Goodman 20171701 condensate drain trap is a factory-original component for the GMV950905DXBB 95% AFUE furnace. High-efficiency condensing furnaces produce acidic water vapor that must drain away safely; the trap provides a water seal that lets condensate exit while blocking flue gases from escaping into the cabinet. A cracked, clogged, or algae-fouled trap causes water leaks, pressure-switch faults, and nuisance lockouts.
The OEM Goodman trap matches factory port sizing and orientation for a clean, leak-free fit and correct water-seal depth. A generic trap can be a cost-effective substitute for the same application, though port spacing and hose barbs should be confirmed against the original. Both restore proper drainage.
Easy (2/5). Power off, place a towel to catch residual water, disconnect the drain hoses, swap the trap, and reconnect. Prime the new trap with water before restoring power so the seal is established immediately.
Inspect and flush the trap seasonally to prevent clogs. Disconnect power before servicing.