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The Goodman 20171701 Condensate Drain Trap is a genuine OEM assembly designed for the GMH951155DXAD 95% high-efficiency furnace. As a condensing furnace extracts additional heat, acidic water forms in the secondary heat exchanger and must drain away safely. This trap collects that condensate and maintains a water seal that blocks flue gases from escaping into the cabinet while allowing water to flow to the drain.
The OEM trap matches the exact port geometry, float, and water-seal height engineered for your furnace's drainage and pressure-switch logic. Generic traps can seal incorrectly, allowing flue gas past the water seal or triggering pressure-switch faults. For proper condensate management and combustion safety, the genuine Goodman part is the right choice.
Requires accessing the drain system and disconnecting hoses. Drain and clean the area, detach the old trap, install the new one with the supplied clamps or grommets, then prime the trap with water and confirm free drainage. Check for leaks and correct pressure-switch operation before returning the furnace to service.