IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B1378700 is a genuine OEM 16-pin wiring harness for the Goodman/Amana AEPF30361BA air handler. This main interconnect carries control and power signals between the integrated control board and the unit's components. Heat-damaged terminals, melted insulation, or broken pins on the original harness cause erratic operation, blower faults, and no-heat/no-cool conditions—this exact-fit replacement restores reliable, factory-spec connections.
A 16-pin harness routes both control logic and load current—mismatched generic terminals overheat and back out, risking board damage. This authentic Goodman harness uses factory wire gauge, terminal plating, and keyed connectors so it seats once, correctly, and protects your control board investment.
Easy (2/5). Disconnect power, unplug the keyed connectors, route the new harness along the original path, and click into place. About 15–20 minutes. Photograph routing before removal and always shut off power at the breaker first.