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The Goodman 20171701 Condensate Drain Trap is a genuine OEM replacement part engineered for the GMV90703BXBA 90%+ AFUE condensing gas furnace and compatible Goodman/Amana models. On high-efficiency furnaces the secondary heat exchanger produces acidic condensate that must drain freely while the trap maintains a water seal that prevents flue gases from escaping into the drain line. A cracked, clogged, or missing trap is a common cause of nuisance lockouts and pressure-switch faults.
This is a factory-original Goodman component, guaranteeing exact port spacing, seal geometry, and correct water-column depth. Generic universal traps often require adapters and can leak or fail to hold the proper seal, triggering pressure-switch errors. For reliable operation we recommend the OEM part.
Easy (2/5). Most homeowners can swap this trap in 15–20 minutes with basic hand tools. Power down the furnace, disconnect the condensate lines, remove the old trap, install the new 20171701, and prime it with water before restarting. When in doubt, consult a licensed HVAC technician.