{"product_id":"oem-lennox-furnace-control-board-68m64","title":"OEM Lennox Furnace Control Board — 68M64","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e68M64\u003c\/strong\u003e furnace control board is the integrated brain of your Lennox gas furnace, orchestrating the ignition sequence, gas valve, inducer motor, blower speeds, and flame-sensing safety circuits. It reads thermostat calls, verifies pressure switches and limits, and manages precise on\/off timing to deliver safe, efficient, and comfortable heating cycles tailored to your Lennox equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include no heat, a furnace that won't ignite, the blower running constantly or not at all, short cycling, erratic operation, or blinking LED diagnostic fault codes. Failed relays, blown onboard fuses, cracked solder joints, and heat- or surge-related component damage are the usual culprits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e the \u003cstrong\u003e68M64\u003c\/strong\u003e is programmed with the exact ignition timing, blower profiles, and safety logic your furnace model requires. Aftermarket boards can introduce mismatched sequencing that causes nuisance lockouts or defeats flame-safety protections. Choose the factory-direct replacement for guaranteed fit, rated performance, and dependable heat all winter long.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081079406963,"sku":"LNX-68M64","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-68M64.jpg?v=1783761076","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-furnace-control-board-68m64","provider":"National HVAC Parts","version":"1.0","type":"link"}