{"product_id":"oem-lennox-ignition-control-module-80k12","title":"OEM Lennox Ignition Control Module — 80K12","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e80K12\u003c\/strong\u003e ignition control module is the brain of your Lennox furnace's startup sequence. It manages the timing of the draft inducer, igniter, gas valve, and blower while continuously monitoring flame sense and safety inputs. When this board fails, the entire heating cycle can stall — leaving you with no heat even when every other component is healthy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms include:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNo response when a heat call is sent from the thermostat\u003c\/li\u003e\n\u003cli\u003eIgniter or inducer fails to energize\u003c\/li\u003e\n\u003cli\u003eFurnace locks out after repeated failed ignition attempts\u003c\/li\u003e\n\u003cli\u003eErratic diagnostic LED flash codes or a completely dark board\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eVoltage surges, moisture, cracked solder joints, and burned relays are frequent causes of module failure on aging equipment. Replacing with the correct Lennox \u003cstrong\u003e80K12\u003c\/strong\u003e restores proper ignition logic and flame-safety supervision.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox ignition modules use board-specific firmware, timing values, and connector pinouts matched to your furnace model. A universal or aftermarket board can misfire the sequence, defeat safety lockouts, or damage the gas valve. The OEM \u003cstrong\u003e80K12\u003c\/strong\u003e is a direct plug-in replacement engineered for exact compatibility and long-term reliability.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081094873459,"sku":"LNX-80K12","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-80K12.jpg?v=1783762123","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-ignition-control-module-80k12","provider":"National HVAC Parts","version":"1.0","type":"link"}