{"product_id":"oem-goodman-circuit-board-9-pin-harness-for-gmt090-5b-b1809913s","title":"OEM Goodman Circuit Board 9-Pin Harness for GMT090-5B — B1809913S","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1809913S Integrated Furnace Control (IFC) Board\u003c\/strong\u003e is a genuine OEM replacement for the Goodman \u003cstrong\u003eGMT090-5B\u003c\/strong\u003e gas furnace, supplied complete with the \u003cstrong\u003e9-pin wiring harness\u003c\/strong\u003e. This board manages the entire heating sequence — inducer start, pressure-switch proving, igniter warm-up, gas valve timing, flame sensing, and blower on\/off delays — while providing on-board diagnostic LED fault codes for fast troubleshooting.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Integrated furnace control (ignition control board)\u003c\/li\u003e\n\u003cli\u003eIncludes: 9-pin plug-in wiring harness\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT090-5B and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFeatures: Diagnostic LED fault codes, adjustable heat\/cool blower delays\u003c\/li\u003e\n\u003cli\u003eControl: 24V thermostat inputs, hot-surface igniter output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1809913S\u003c\/strong\u003e is factory-programmed with the correct ignition timing and safety lockout logic for this furnace platform, and the included 9-pin harness matches the existing connectors for a direct swap. Aftermarket or \"universal\" boards often require jumper reconfiguration, differ in timing, or omit the harness — risking short-cycling, delayed ignition, or nuisance lockouts. For safe, code-correct operation we strongly recommend the OEM board.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5)\u003c\/strong\u003e — Photograph all wiring first. Disconnect power, note LED fault history, transfer connectors one at a time to the new board, and secure it to the OEM standoffs. Allow 30–45 minutes. Basic electrical familiarity recommended; if you are unsure of low-voltage wiring, use a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058160419187,"sku":"GOODMAN-12416","price":184.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-circuit-board-9-pin-harness-for-gmt090-5b-b1809913s","provider":"National HVAC Parts","version":"1.0","type":"link"}