{"product_id":"oem-lennox-armstrong-ducane-integrated-furnace-control-board-52m46","title":"OEM Lennox Armstrong Ducane Integrated Furnace Control Board — 52M46","description":"\u003cp\u003eThe \u003cstrong\u003e52M46\u003c\/strong\u003e is a genuine OEM Lennox integrated furnace control (IFC) board used in Armstrong Air and Ducane gas furnaces. This board is the brain of the furnace — it manages the ignition sequence, monitors safety limits and flame sensing, controls the inducer and blower motors, and coordinates the gas valve to deliver safe, reliable heat on every call from the thermostat.\u003c\/p\u003e\u003cp\u003eWhen a control board fails, you'll often see symptoms such as the furnace failing to ignite, short cycling, the blower running constantly or not at all, no response to the thermostat, or fault\/lockout LED codes flashing at the board. Cracked solder joints, blown relays, or a failed onboard fuse are common culprits.\u003c\/p\u003e\u003cp\u003eChoosing the OEM \u003cstrong\u003e52M46\u003c\/strong\u003e board matters because it is calibrated to the exact ignition timing, blower profiles, and safety parameters your Armstrong or Ducane furnace was engineered around. Aftermarket substitutes can misread flame signals or mistime the sequence, causing nuisance lockouts. This factory-direct replacement guarantees correct fit, terminal layout, and firmware for dependable operation and full compatibility.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081079865715,"sku":"LNX-52M46","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-52M46.jpg?v=1783759346","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-armstrong-ducane-integrated-furnace-control-board-52m46","provider":"National HVAC Parts","version":"1.0","type":"link"}