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The Goodman 20171701 Condensate Drain Trap is a genuine OEM part designed for the GME950603BXAB 96% AFUE two-stage condensing furnace. In high-efficiency furnaces, combustion produces acidic condensate that must drain freely while the trap blocks flue gases from escaping the drain line. A cracked or clogged trap causes water leaks, pressure-switch faults, and lockouts.
The OEM trap matches the furnace's port layout and internal water-column height, ensuring the pressure switch reads correctly. Generic traps often mismount or alter the seal depth, producing intermittent pressure-switch errors. OEM is strongly recommended here.
Moderate (2/5). Disconnect power, detach drain hoses, swap the trap, and prime it with water before restart. Basic hand tools and a few minutes.
Always de-energize the furnace and re-prime the trap after installation.