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The Goodman 20171701 Condensate Drain Trap is a genuine OEM component for AKSS920704CXAA high-efficiency condensing furnaces. The trap collects and channels acidic condensate from the secondary heat exchanger while maintaining the water seal that keeps flue gases from escaping the drain path. A cracked, clogged, or brittle trap leads to water leaks, pressure-switch faults, and nuisance lockouts — replacing it restores proper condensate flow and safe pressure sensing.
The OEM trap matches the exact port spacing, hose barb sizes, and internal geometry the furnace was engineered around, ensuring a leak-free seal and correct pressure-switch response. Generic traps often require adapters and can misread pressure, causing intermittent faults. For condensing furnaces, OEM is the reliable choice.
Moderate (3/5). Requires disconnecting condensate hoses and clearing any blockage; expect some residual water. Power down the furnace first. Recommended for a technician or a confident DIYer.