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The Goodman 20171701 Condensate Drain Trap is a genuine OEM component for the AMH950453BXAA high-efficiency (90%+ AFUE) gas furnace. This trap collects acidic condensate from the secondary heat exchanger and inducer while sealing against flue-gas bypass, ensuring proper drainage and correct pressure-switch operation. A cracked or clogged trap causes water leaks, pressure-switch lockouts, and inducer faults.
The trap's port layout and internal seal must match the furnace cabinet and pressure-switch tubing exactly. Genuine OEM Goodman guarantees a leak-free fit and correct pressure signal. Generic traps often route ports differently and trigger persistent pressure-switch errors.
Moderate (2/5). Disconnect and re-route condensate and pressure lines; prime the trap with water before startup. Power and gas off. Flush the drain line while the trap is out to clear scale.