{"product_id":"oem-goodman-16-pin-wiring-harness-for-aph1549m41ad-heat-pump-b1378700","title":"OEM Goodman 16-Pin Wiring Harness for APH1549M41AD Heat Pump — B1378700","description":"\u003ch2\u003eGoodman B1378700 16-Pin Wiring Harness\u003c\/h2\u003e\u003cp\u003eRestore reliable control connections in your Goodman\/Amana \u003cstrong\u003eAPH1549M41AD\u003c\/strong\u003e heat pump with this genuine OEM \u003cstrong\u003eB1378700\u003c\/strong\u003e 16-pin wiring harness. The harness links the control board to the unit's low-voltage components — defrost sensor, reversing valve, contactor, pressure switches, and fan circuit — through a single keyed 16-position plug. Melted terminals, chewed insulation (rodent damage), or corroded pins cause intermittent faults, no-defrost conditions, and comfort complaints that are far easier to fix with a fresh harness than by chasing individual wires.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConnector: 16-pin (16-position) keyed control plug\u003c\/li\u003e\n\u003cli\u003eTerminals: Factory-crimped, pre-tinned for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eInsulation: High-temperature, outdoor\/UV-rated wire jacket\u003c\/li\u003e\n\u003cli\u003eApplication: Low-voltage control interconnect harness\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \u0026amp; Amana APH1549M41AD heat pump control assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eWiring harnesses are model-specific: pin assignments, wire colors, gauge, and connector keying all have to match the control board and components. The \u003cstrong\u003eOEM B1378700\u003c\/strong\u003e is a true plug-and-play replacement with correct pinout and lead lengths. Generic or hand-built harnesses risk miswiring, which can damage the board or compressor — always use the factory harness.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e No refrigerant work required, but you must de-energize the unit, photograph the routing, and transfer each connection carefully. A tech (or careful DIYer) can replace it in 30–45 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058291294579,"sku":"GOODMAN-15689","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-16-pin-wiring-harness-for-aph1549m41ad-heat-pump-b1378700","provider":"National HVAC Parts","version":"1.0","type":"link"}