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The Goodman 0131M00009PS is a genuine OEM 1/6 HP condenser fan motor engineered for the WPH4430AHAA and compatible Goodman/Amana packaged units. This motor drives the outdoor fan that pulls air across the condenser coil to reject heat. When it fails, the unit overheats, trips on high pressure, and stops cooling. A factory-matched motor guarantees the correct horsepower, RPM, rotation, and shaft so airflow and head pressure stay in spec.
OEM (this part): Exact HP, RPM, rotation direction, shaft diameter, and mounting so it bolts in and matches the existing capacitor and blade. Generic: Universal replacements can work but require verifying rotation, shaft size, mount pattern, and capacitor value — mismatches cause overheating and warranty issues. OEM is the reliable path.
Moderate (3/5). Disconnect and lock out power, discharge the capacitor, transfer the fan blade at the correct depth, and match the wiring/capacitor per the rating plate. Multimeter and hand tools required. Because it involves line-voltage wiring and a capacitor, a licensed HVAC technician is recommended.