{"product_id":"oem-lennox-flame-rollout-switch-83l88","title":"OEM Lennox Flame Rollout Switch — 83L88","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e83L88\u003c\/strong\u003e flame rollout switch is a manual-reset safety control that protects your Lennox furnace from dangerous flame rollout. If burner flames escape the heat exchanger — typically due to a cracked exchanger, blocked flue, or poor combustion — this switch senses the abnormal heat and immediately cuts power to the gas valve, stopping the furnace before damage or a safety hazard can occur.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A tripped or failed \u003cstrong\u003e83L88\u003c\/strong\u003e results in a furnace that will not fire, repeated hard lockouts, or a system that requires manual reset to restart. Frequent tripping is often a warning sign of an underlying combustion or venting problem that should be inspected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Flame rollout switches are life-safety components, and the \u003cstrong\u003e83L88\u003c\/strong\u003e is built to Lennox's exact trip temperature and mounting specification. Installing the genuine OEM part ensures reliable protection, correct reset behavior, and full compatibility with your Lennox furnace — where a mismatched aftermarket switch could compromise safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081093857651,"sku":"LNX-83L88","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-LNX-83L88.jpg?v=1783760987","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-flame-rollout-switch-83l88","provider":"National HVAC Parts","version":"1.0","type":"link"}