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The Goodman 0259A00002P 9-Pin Male Wiring Harness is a genuine OEM electrical connector for the ATUF193116AA air handler and compatible Goodman/Amana units. This plug-in harness carries the low-voltage and control signals between the air handler's control board and its blower and accessory circuits. Melted, corroded, or chafed connectors cause intermittent faults, no-start conditions, and erratic fan behavior — replacing the harness restores a clean, reliable connection.
The OEM 0259A00002P uses the correct pin count, keying, and wire gauge so it mates perfectly with the factory board — no splicing or re-pinning required. Generic or hand-spliced harnesses risk loose pins, polarity errors, and connection faults. For wiring, OEM is the safest and fastest fix.
Disconnect power at the breaker, photograph the existing routing, unplug the old 9-pin connector, route the replacement along the same path, and seat the new plug until it clicks. Most installs take 15–30 minutes. If you are unsure about connector orientation or low-voltage wiring, consult a licensed HVAC technician. Always verify power is off before disconnecting any harness.