{"product_id":"oem-lennox-ignition-control-module-56l85","title":"OEM Lennox Ignition Control Module — 56L85","description":"\u003cp\u003eThe Lennox \u003cstrong\u003e56L85\u003c\/strong\u003e ignition control module is the brain that governs your furnace's ignition sequence. It sequences the inducer motor, gas valve, and igniter while continuously monitoring flame sense and safety limits to ensure clean, reliable startups on your Lennox equipment. This OEM board is engineered to the exact firmware and pinout your system expects, so it drops in without adapters or rewiring.\u003c\/p\u003e\u003cp\u003eWhen the \u003cstrong\u003e56L85\u003c\/strong\u003e fails, you'll often see no ignition at all, short cycling, the blower running without heat, or a diagnostic LED flashing a fault code. Cracked traces, failed relays, and heat-stressed components are common culprits as a module ages in the hot furnace cabinet.\u003c\/p\u003e\u003cp\u003eChoosing OEM matters on ignition control. Aftermarket boards can mis-time the gas valve or misread the flame signal, creating nuisance lockouts and, worse, real safety risks. The genuine Lennox \u003cstrong\u003e56L85\u003c\/strong\u003e preserves the factory ignition logic, safety timings, and warranty compatibility your Lennox furnace was designed around — restoring dependable, code-correct heating.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081102672243,"sku":"LNX-56L85","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-56L85.jpg?v=1783762122","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-ignition-control-module-56l85","provider":"National HVAC Parts","version":"1.0","type":"link"}