OEM Goodman Condensate Drain Trap for GCH91155DXAA — 20171701

Goodman 20171701 Condensate Drain Trap

The Goodman 20171701 is a genuine OEM condensate drain trap built for the GCH91155DXAA high-efficiency (condensing) gas furnace. In a 90%+ AFUE furnace, combustion produces acidic water vapor that condenses and must drain away safely. The drain trap provides a water seal that lets condensate flow out while blocking flue gases from being pulled back through the drain line — protecting the pressure-switch circuit and preventing lockouts. A cracked, clogged, or brittle trap is a leading cause of water leaks, pressure-switch faults, and no-heat calls on condensing furnaces.

Specifications

• Type: Condensate drain trap assembly
• OEM Part Number: 20171701
• Brand: Goodman (Amana compatible)
• Primary Fit: GCH91155DXAA high-efficiency gas furnace
• Function: Water seal for condensate drainage / flue-gas isolation
• Application: Condensing (90%+ AFUE) furnaces

OEM vs. Generic

The OEM 20171701 matches the exact port locations, hose barb sizes, and internal geometry Goodman designed for this furnace, ensuring proper drainage and a correct pressure-switch signal. Universal traps often require adapters and can misroute condensate or leak at the seams. The genuine part installs cleanly and works right the first time.

Installation Difficulty

Easy–Moderate (2.5/5). Roughly 20–30 minutes. Power down the furnace, disconnect the inlet and outlet hoses and any pressure tubes, remove the old trap, prime the new trap with clean water, reconnect all lines, and verify a leak-free drain during a full heating cycle. Label hoses before removal to ensure correct reassembly.