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Genuine Goodman/Amana condensate drain trap, part 0161F00046, is a direct-fit replacement for the AMVM970804CNBA modulating condensing furnace and related Goodman/Amana 90%+ AFUE models. In a high-efficiency furnace the secondary heat exchanger produces acidic condensate; this trap drains it while maintaining the pressure seal the inducer and pressure switches rely on. A cracked, clogged, or brittle trap causes water leaks, pressure-switch lockouts, and error codes.
The OEM trap is molded to the exact port spacing and internal geometry this furnace needs, so pressure switches read correctly and it seals without leaks. Generic traps rarely match the port layout on modulating models and can throw false pressure-switch faults. OEM is strongly recommended for condensing furnaces.
Moderate — 20–30 minutes. Requires disconnecting condensate lines and hoses, then flushing the new trap. Power off, and have a towel ready for residual water.