{"product_id":"oem-lennox-control-board-81l76","title":"OEM Lennox Control Board — 81L76","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e81L76\u003c\/strong\u003e control board is the electronic brain of your Lennox furnace, governing the ignition sequence, blower and inducer timing, and onboard safety monitoring. Manufactured to exact Lennox specifications, this board is a direct factory replacement that restores dependable, code-compliant operation to compatible Lennox systems.\u003c\/p\u003e\u003cp\u003eA failing control board often shows itself through a furnace that won't ignite, short-cycling, the blower running nonstop or not at all, or blinking diagnostic LED fault codes. Burnt spots, corroded relays, or complete loss of power to the unit are clear indicators the board needs to be replaced.\u003c\/p\u003e\u003cp\u003eOEM matters here more than almost anywhere in your system. The \u003cstrong\u003e81L76\u003c\/strong\u003e is programmed with Lennox-specific timings, relay ratings, and connector pinouts that generic boards cannot reliably match. Installing the correct factory board avoids nuisance lockouts, protects downstream components like the igniter and gas valve, and keeps your Lennox furnace operating at its rated safety and efficiency.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081079177587,"sku":"LNX-81L76","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-81L76.jpg?v=1783759980","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-control-board-81l76","provider":"National HVAC Parts","version":"1.0","type":"link"}