{"product_id":"oem-goodman-integrated-furnace-control-board-for-gmnt100-4b-b1809913s","title":"OEM Goodman Integrated Furnace Control Board for GMNT100-4B — B1809913S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1809913S Integrated Furnace Control Board\u003c\/strong\u003e is the genuine OEM brain of your \u003cstrong\u003eGMNT100-4B\u003c\/strong\u003e gas furnace, supplied complete with the \u003cstrong\u003e9-pin wiring harness\u003c\/strong\u003e for a direct replacement. This board sequences the entire heating cycle — inducer startup, ignition, gas valve timing, flame sensing, and blower on\/off delays — while continuously monitoring the limit, rollout, and pressure safety switches. It is compatible with the GMNT100-4B and select Goodman\/Amana furnaces using the same control platform.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: Integrated furnace control (ignition + blower + safety logic)\u003c\/li\u003e\n\u003cli\u003eIncludes: 9-pin plug-in wiring harness\u003c\/li\u003e\n\u003cli\u003eOnboard diagnostics: LED fault-code output\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1809913S\u003c\/li\u003e\n\u003cli\u003eCompatibility: GMNT100-4B and select Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eType: Direct-replacement factory board\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM B1809913S\u003c\/strong\u003e is flashed with Goodman's exact ignition sequence and safety timings and includes the correct 9-pin harness for a true plug-and-play swap. Aftermarket or 'universal' boards can require rewiring, may not honor the original blower delays, and often void diagnostic LED functionality. For a control this central to safe operation, OEM is the reliable choice.\u003c\/p\u003e\u003ch3\u003eSymptoms of a Failed Control Board\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo ignition, no inducer, or no blower response\u003c\/li\u003e\n\u003cli\u003eFurnace locks out with erratic or no LED flash codes\u003c\/li\u003e\n\u003cli\u003eBurners fire but blower never engages (or runs constantly)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Difficulty: Moderate\u003c\/h3\u003e\u003cp\u003eCut power at the disconnect, photograph the existing wiring, and transfer connectors one at a time to the identical terminals — the included 9-pin harness makes the main plug foolproof. Allow 30–45 minutes. If you are unsure about wiring or the furnace still won't cycle, we recommend a licensed HVAC technician to verify flame sensing and gas-valve timing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058131190131,"sku":"GOODMAN-11733","price":184.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-integrated-furnace-control-board-for-gmnt100-4b-b1809913s","provider":"National HVAC Parts","version":"1.0","type":"link"}