{"product_id":"69w43-furnace-flame-sensor-2pack","title":"69W43 Furnace Flame Sensor - For Lennox, Armstrong \u0026 Ducane Furnaces - Replaces 69W4301 LB-74940B LB74940B - 2 Pack","description":"\u003ch2\u003e69W43 Furnace Flame Sensor\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDetects burner flame to enable safe and continuous furnace operation.\u003c\/li\u003e\n\u003cli\u003eConstructed with a durable cermet insulator and a corrosion-resistant sensing rod.\u003c\/li\u003e\n\u003cli\u003eAngled probe design for direct replacement and optimal positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e69W43\u003c\/li\u003e\n\u003cli\u003e69W4301\u003c\/li\u003e\n\u003cli\u003eLB-74940B\u003c\/li\u003e\n\u003cli\u003eLB74940B\u003c\/li\u003e\n\u003cli\u003e102431-02\u003c\/li\u003e\n\u003cli\u003e790-801A1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned as a direct replacement part for specific furnace models from:\u003c\/li\u003e\n\u003cli\u003eLennox\u003c\/li\u003e\n\u003cli\u003eDucane\u003c\/li\u003e\n\u003cli\u003eArmstrong\u003c\/li\u003e\n\u003cli\u003eNote: Always confirm compatibility by checking your equipment's service manual and part number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace ignites but shuts down after a few seconds.\u003c\/li\u003e\n\u003cli\u003eBurner flame will not stay lit.\u003c\/li\u003e\n\u003cli\u003eVisible damage, such as a cracked porcelain insulator on the existing sensor.\u003c\/li\u003e\n\u003cli\u003eHeavy carbon buildup or corrosion on the sensor rod that cleaning does not resolve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect all electrical power to the furnace unit before beginning installation.\u003c\/li\u003e\n\u003cli\u003eHandle the new sensor by the porcelain base to avoid contaminating the metal rod with skin oils.\u003c\/li\u003e\n\u003cli\u003eEnsure the sensor rod is properly positioned to be enveloped by the burner flame during operation.\u003c\/li\u003e\n\u003cli\u003eInspect the connecting wire for damage and ensure a secure connection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45772996870333,"sku":"AZ00209924","price":21.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00109547_1_d49f1405-5dd1-4901-b7e1-e2b8f164fe5a.jpg?v=1762245822","url":"https:\/\/bluestarsparts.com\/products\/69w43-furnace-flame-sensor-2pack","provider":"BlueStars Parts","version":"1.0","type":"link"}