{"product_id":"oem-goodman-furnace-control-board-w-9-pin-harness-gdt045-3b-b1809913s","title":"OEM Goodman Furnace Control Board w\/ 9-Pin Harness GDT045-3B — B1809913S","description":"\u003ch2\u003eGoodman B1809913S Integrated Furnace Control Board\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1809913S\u003c\/strong\u003e is a factory-original integrated furnace control (IFC) board supplied with the matching \u003cstrong\u003e9-pin wiring harness\u003c\/strong\u003e for the \u003cstrong\u003eGDT045-3B\u003c\/strong\u003e gas furnace. This is the brain of the furnace: it manages the ignition sequence, sequences the inducer and blower, reads the flame sensor and limit circuits, and drives the diagnostic LED. Common failure symptoms include no ignition, blower running constantly, intermittent lockouts, or a blank\/erratic diagnostic light. The included harness makes for a cleaner, more reliable swap.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e B1809913S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Integrated furnace control (IFC) circuit board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 9-pin wiring harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Ignition control, blower\/inducer timing, safety-circuit monitoring, diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GDT045-3B furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eFor a control board we strongly recommend the \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e part — exact firmware, timing, and connector pin-out guarantee correct sequencing and safety behavior. A \u003cstrong\u003egeneric\/aftermarket\u003c\/strong\u003e board can save money but may differ in timing or LED codes. Both are guaranteed to fit the GDT045-3B.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Moderate to Advanced\u003c\/h3\u003e\u003cp\u003ePlan on 45–60 minutes. Photograph every connection first, then move wires one at a time from the old board to the new one; the supplied 9-pin harness simplifies the main plug. Cut power at the breaker before starting. If you're not comfortable with furnace wiring or reading diagnostic codes, use a licensed HVAC technician — miswiring a control board can create a safety hazard.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058079089011,"sku":"GOODMAN-10408","price":184.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-furnace-control-board-w-9-pin-harness-gdt045-3b-b1809913s","provider":"National HVAC Parts","version":"1.0","type":"link"}