{"product_id":"oem-lennox-furnace-limit-switch-69w41","title":"OEM Lennox Furnace Limit Switch — 69W41","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e69W41\u003c\/strong\u003e limit switch is a temperature-sensing safety control mounted on your furnace's heat exchanger or plenum. It continuously monitors supply-air temperature and cuts power to the burners if the unit overheats, protecting the heat exchanger from thermal damage and preventing unsafe operating conditions in your Lennox gas or electric furnace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When a limit switch fails, you may experience short cycling (the burner igniting then shutting off repeatedly), the blower running continuously, no heat despite the ignition sequence starting, or a furnace that trips into a lockout fault. A switch that stays open will prevent the burner from firing, while one that fails closed defeats critical overheat protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The Lennox \u003cstrong\u003e69W41\u003c\/strong\u003e is calibrated to a specific temperature set point and trip range engineered for your exact furnace model. Generic substitutes with the wrong cut-out temperature can cause nuisance trips or, worse, fail to shut down an overheating unit. Choosing the factory-specified OEM part guarantees correct calibration, proper terminal fit, and safe, code-compliant operation.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081097625971,"sku":"LNX-69W41","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-LNX-69W41.jpg?v=1783761151","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-furnace-limit-switch-69w41","provider":"National HVAC Parts","version":"1.0","type":"link"}