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The Goodman 20171701 Condensate Drain Trap is a genuine OEM component for the GCV90905DXBA high-efficiency condensing gas furnace. This factory-molded P-trap collects and routes acidic condensate away from the heat exchanger and inducer while maintaining a water seal that blocks flue gases from backing into the cabinet. A cracked or clogged trap is a leading cause of pressure-switch lockouts and water damage.
Condensing furnace traps are shaped to specific port spacing and depth. The OEM 20171701 drops in without adapters and seals correctly on the first try. Universal traps often require re-plumbing and can leave pressure-switch tubing kinked. OEM saves time and prevents nuisance faults.
Easy to Moderate — disconnect the drain lines and pressure-switch tubing, swap the trap, and reconnect. Roughly 20–30 minutes; flush and prime the trap with water before restarting.