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The Goodman B1378700 16-Pin Wiring Harness is a genuine OEM control harness for the APH1560M41AD packaged heat pump. It carries the low-voltage and control signals between the main control board and the unit's components through a keyed 16-position connector. Factory-terminated with the correct gauge wire, color coding, and locking plug, it drops in without cutting, crimping, or guesswork — restoring reliable communication when a harness is chafed, melted, or has corroded pins.
An OEM harness guarantees the exact pin-out, connector keying, and wire colors match the board and schematic. Universal harnesses require you to identify and re-pin each conductor, which invites miswiring, intermittent faults, and control-board damage. For a 16-pin control connection, OEM eliminates the risk.
Easy. With power off, unplug the old harness at both ends, route the new one along the same path, and snap the keyed connectors into place. No cutting or splicing required. Confirm the connectors click and lock fully.