{"product_id":"lennox-40l81-flame-sensor-lb-94701a","title":"Lennox 40L81 Flame Sensor – LB-94701A","description":"\u003cp\u003e\u003cstrong data-start=\"45\" data-end=\"65\"\u003eOEM Part Number:\u003c\/strong\u003e LB-94701A\u003cbr data-start=\"75\" data-end=\"78\"\u003e\u003cstrong data-start=\"78\" data-end=\"97\"\u003eCatalog Number:\u003c\/strong\u003e 40L81\u003cbr data-start=\"103\" data-end=\"106\"\u003e\u003cstrong data-start=\"106\" data-end=\"116\"\u003eBrand:\u003c\/strong\u003e Lennox Genuine OEM\u003cbr data-start=\"135\" data-end=\"138\"\u003e\u003cstrong data-start=\"138\" data-end=\"155\"\u003eProduct Type:\u003c\/strong\u003e Flame Sensor Kit\u003c\/p\u003e\n\u003ch2 data-section-id=\"1185nuc\" data-start=\"1200\" data-end=\"1243\" class=\"PDq2pG_selectionAnchorContainer\"\u003eCommon Symptoms of a Faulty Flame Sensor\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"1245\" data-end=\"1401\"\u003eA dirty or failing flame sensor can cause your furnace to shut down even though all other components appear to be working normally. Common symptoms include:\u003c\/p\u003e\n\u003cul data-start=\"1403\" data-end=\"1753\"\u003e\n\u003cli data-section-id=\"1akkgr6\" data-start=\"1403\" data-end=\"1455\"\u003eFurnace ignites but shuts off after a few seconds.\u003c\/li\u003e\n\u003cli data-section-id=\"1rpywi1\" data-start=\"1456\" data-end=\"1500\"\u003eBurners light and then immediately go out.\u003c\/li\u003e\n\u003cli data-section-id=\"1wxjy47\" data-start=\"1501\" data-end=\"1538\"\u003eFurnace repeatedly tries to ignite.\u003c\/li\u003e\n\u003cli data-section-id=\"1785akf\" data-start=\"1539\" data-end=\"1573\"\u003eLockout or ignition fault codes.\u003c\/li\u003e\n\u003cli data-section-id=\"1vibr1d\" data-start=\"1574\" data-end=\"1643\"\u003eNo heat even though the inducer motor and igniter operate normally.\u003c\/li\u003e\n\u003cli data-section-id=\"2odyxq\" data-start=\"1644\" data-end=\"1687\"\u003eIntermittent heating during cold weather.\u003c\/li\u003e\n\u003cli data-section-id=\"9jls1j\" data-start=\"1688\" data-end=\"1753\"\u003eFurnace runs for one cycle but fails on the next call for heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1755\" data-end=\"2038\"\u003eDuring the winter months, these problems are common throughout \u003cstrong data-start=\"1818\" data-end=\"1829\"\u003eAlberta\u003c\/strong\u003e, including \u003cstrong data-start=\"1841\" data-end=\"1969\"\u003eCalgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, Fort McMurray, Grande Prairie, Airdrie, Sherwood Park, and St. Albert\u003c\/strong\u003e, where furnaces often run continuously during extended cold periods.\u003c\/p\u003e\n\u003cp data-start=\"2040\" data-end=\"2374\"\u003eIn \u003cstrong data-start=\"2043\" data-end=\"2054\"\u003eOntario\u003c\/strong\u003e, homeowners in \u003cstrong data-start=\"2070\" data-end=\"2250\"\u003eToronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Hamilton, Ottawa, Kingston, Cornwall, Oshawa, Whitby, Ajax, Pickering, Barrie, and London\u003c\/strong\u003e frequently experience flame sensor issues after years of normal furnace operation or from carbon buildup on the sensor rod.\u003c\/p\u003e\n\u003ch2 data-section-id=\"14a29k9\" data-start=\"2376\" data-end=\"2411\"\u003eCompatible Lennox Furnace Models\u003c\/h2\u003e\n\u003cp data-start=\"2413\" data-end=\"2538\"\u003eThe \u003cstrong data-start=\"2417\" data-end=\"2450\"\u003eLennox 40L81 Flame Sensor Kit\u003c\/strong\u003e is used on many Lennox furnaces equipped with the SureLight ignition system, including:\u003c\/p\u003e\n\u003cul data-start=\"2540\" data-end=\"2593\"\u003e\n\u003cli data-section-id=\"k2qw39\" data-start=\"2540\" data-end=\"2552\"\u003eG23 Series\u003c\/li\u003e\n\u003cli data-section-id=\"1hy79ow\" data-start=\"2553\" data-end=\"2565\"\u003eG26 Series\u003c\/li\u003e\n\u003cli data-section-id=\"1ji5ac5\" data-start=\"2566\" data-end=\"2578\"\u003eG32 Series\u003c\/li\u003e\n\u003cli data-section-id=\"93w6ni\" data-start=\"2579\" data-end=\"2593\"\u003e90UGF Series\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Oem Hvac Parts Canada","offers":[{"title":"Default Title","offer_id":53113346425108,"sku":null,"price":120.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/6146\/6132\/files\/oem40L81.jpg?v=1785018029","url":"https:\/\/oemhvacpartscanada.ca\/products\/lennox-40l81-flame-sensor-lb-94701a","provider":"Oem Hvac Parts Canada","version":"1.0","type":"link"}