{"product_id":"50a65-121-lennox-furnace-control-circuit-board-24v","title":"50A65-121 | Lennox Furnace Control Circuit Board 24V","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Lennox 50A65-121 is a furnace control circuit board with integrated Silicon Nitride ignition and Sure Light technology for dependable furnace operation. Operating at 24 V with a 50 A rating, it serves as an OEM upgraded White-Rodgers replacement kit for Lennox heating systems.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 352.688px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eLennox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eControl Boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003e50A65-121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eFurnace Control Boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eFurnace control and ignition management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003e24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eAmperage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003e50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eSilicon Nitride, Integrated Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eSure Light, OEM Upgraded White-Rodgers Replacement Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eHeating System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eFurnace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eResidential HVAC heating systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003ePower Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003eSingle-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003ePanel mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.223%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4133%; height: 19.5938px;\"\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003e50A65-121\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-end=\"1781\" data-start=\"1141\"\u003eThe 50A65-121 is part of Lennox’s Sure Light series of furnace control boards, designed to improve ignition reliability and furnace safety. It features integrated Silicon Nitride ignition technology, providing efficient burner startup and consistent heating performance. As an OEM upgraded White-Rodgers replacement kit, the board is directly compatible with Lennox systems, simplifying installation and ensuring dependable operation. Compact and lightweight, the 50A65-121 offers stable system control while supporting critical furnace functions such as ignition sequencing, fan regulation, and safety monitoring.\u003c\/p\u003e\n\u003cp data-end=\"1802\" data-start=\"1783\"\u003e\u003cstrong data-end=\"1800\" data-start=\"1783\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2747\" data-start=\"1803\"\u003e\n\u003cli data-end=\"1913\" data-start=\"1803\"\u003e\n\u003cp data-end=\"1913\" data-start=\"1805\"\u003e\u003cstrong data-end=\"1840\" data-start=\"1805\"\u003eIntegrated Ignition Technology:\u003c\/strong\u003e Uses Silicon Nitride ignition for reliable, efficient burner lighting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2036\" data-start=\"1914\"\u003e\n\u003cp data-end=\"2036\" data-start=\"1916\"\u003e\u003cstrong data-end=\"1943\" data-start=\"1916\"\u003eSure Light Performance:\u003c\/strong\u003e Incorporates Lennox’s Sure Light system for consistent ignition and reduced misfire risks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2157\" data-start=\"2037\"\u003e\n\u003cp data-end=\"2157\" data-start=\"2039\"\u003e\u003cstrong data-end=\"2073\" data-start=\"2039\"\u003eOEM Replacement Compatibility:\u003c\/strong\u003e Serves as a White-Rodgers upgraded kit designed specifically for Lennox furnaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2278\" data-start=\"2158\"\u003e\n\u003cp data-end=\"2278\" data-start=\"2160\"\u003e\u003cstrong data-end=\"2186\" data-start=\"2160\"\u003eElectrical Capability:\u003c\/strong\u003e Operates at 24 V single-phase with a 50 A rating, ensuring stable performance under load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2400\" data-start=\"2279\"\u003e\n\u003cp data-end=\"2400\" data-start=\"2281\"\u003e\u003cstrong data-end=\"2308\" data-start=\"2281\"\u003eMulti-Function Control:\u003c\/strong\u003e Coordinates ignition sequence, blower operation, and safety shutdowns within the furnace.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2515\" data-start=\"2401\"\u003e\n\u003cp data-end=\"2515\" data-start=\"2403\"\u003e\u003cstrong data-end=\"2437\" data-start=\"2403\"\u003eCompact and Lightweight Build:\u003c\/strong\u003e Weighs only 1 lb, making it easy to handle and install during replacements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2627\" data-start=\"2516\"\u003e\n\u003cp data-end=\"2627\" data-start=\"2518\"\u003e\u003cstrong data-end=\"2541\" data-start=\"2518\"\u003eSystem Reliability:\u003c\/strong\u003e Enhances long-term furnace efficiency by providing consistent and accurate control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2887\" data-start=\"2749\"\u003eThe 50A65-121 delivers the reliability and precision required for safe ignition management and system control in Lennox furnace systems.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":49105226170624,"sku":"50A65-121","price":432.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_6a3c9940-4835-44dc-9f8f-9c6c0bf2e18a.webp?v=1785543007","url":"https:\/\/alotechparts.com\/products\/50a65-121-lennox-furnace-control-circuit-board-24v","provider":"Alo Tech Solutions","version":"1.0","type":"link"}