{"product_id":"oem-goodman-16-pin-wiring-harness-for-aph1549m41ac-b1378700","title":"OEM Goodman 16-Pin Wiring Harness for APH1549M41AC — B1378700","description":"\u003cp\u003eThe genuine \u003cstrong\u003eGoodman B1378700 16-Pin Wiring Harness\u003c\/strong\u003e is a factory-original control harness for the \u003cstrong\u003eAPH1549M41AC\u003c\/strong\u003e heat pump. It carries low-voltage signals and sensor connections between the control board and the unit's major components through a keyed 16-position connector. Heat, vibration, and moisture eventually embrittle harness insulation and corrode pins — symptoms include intermittent operation, fault codes, and components that fail to energize.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Control\/interconnect wiring harness\u003c\/li\u003e\n\u003cli\u003eConnector: 16-pin keyed plug\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana APH1549M41AC heat pump\u003c\/li\u003e\n\u003cli\u003eFunction: Board-to-component low-voltage signal and sensor wiring\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1378700\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1378700 uses the correct wire gauge, pin layout, and connector keying so it drops in without splicing or re-pinning. Building a substitute harness by hand risks crossed circuits and loose crimps that damage the control board. A plug-and-play factory harness is faster, safer, and eliminates guesswork on pin assignments.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate.\u003c\/strong\u003e Kill power at the breaker, photograph the routing, unplug the old harness at both ends, and seat the replacement until the connectors latch. No splicing required, but correct routing away from hot and moving parts matters. A methodical DIYer or any HVAC tech can complete it.\u003c\/p\u003e\u003cp\u003eGenuine Goodman sourcing, ready to ship. Restore reliable control connections with the exact OEM harness.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058291097971,"sku":"GOODMAN-15683","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-16-pin-wiring-harness-for-aph1549m41ac-b1378700","provider":"National HVAC Parts","version":"1.0","type":"link"}