{"product_id":"oem-lennox-ignition-control-board-16c81","title":"OEM Lennox Ignition Control Board — 16C81","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e16C81\u003c\/strong\u003e ignition control board is the electronic brain that sequences your furnace's heating cycle. It manages the draft inducer, hot surface or spark ignition, gas valve timing, flame sensing, and blower operation while continuously monitoring safety limits and pressure switches. Precise timing and reliable flame verification depend entirely on this board.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the \u003cstrong\u003e16C81\u003c\/strong\u003e fails, you may see no ignition, a furnace stuck on a diagnostic flash code, intermittent no-heat calls, or a system that ignites then drops out. Corroded traces, blown fuses, cracked solder joints, or a board that won't respond to a thermostat call all point to replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Furnace control boards are programmed with model-specific ignition timings and safety logic. A universal or aftermarket board may mis-sequence components or bypass critical protections. The factory Lennox \u003cstrong\u003e16C81\u003c\/strong\u003e guarantees the correct firmware, connector layout, and safety interlocks your furnace was certified with — restoring dependable, code-compliant heating.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081144254835,"sku":"LNX-16C81","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-LNX-16C81.jpg?v=1783762077","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-ignition-control-board-16c81","provider":"National HVAC Parts","version":"1.0","type":"link"}