{"product_id":"lennox-78l29-78l2901-flame-rollout-switch","title":"Lennox 78L29 \/ 78L2901 Flame Rollout Switch","description":"\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Lennox\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e 78L29\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part Number:\u003c\/strong\u003e 78L2901\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Flame Rollout Limit Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset Type:\u003c\/strong\u003e Manual Reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuation Temperature:\u003c\/strong\u003e 250°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e SPST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Identification:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 66255135674\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace safety control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLennox identifies the \u003cstrong\u003e78L29 \/ 78L2901\u003c\/strong\u003e as a manual-reset rollout switch that actuates at \u003cstrong\u003e250°F\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eReplacement \u0026amp; Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e78L29\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e78L2901\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe catalog number \u003cstrong\u003e78L29\u003c\/strong\u003e and model\/part number \u003cstrong\u003e78L2901\u003c\/strong\u003e identify the same Lennox rollout control. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eLennox 78L29 Flame Rollout Switch\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLennox 78L29\u003c\/strong\u003e is a manual-reset furnace safety switch designed to open the safety circuit if excessive heat or flame rollout is detected in the burner area.\u003c\/p\u003e\n\u003cp\u003eThe switch is normally part of the furnace safety circuit. If the temperature at the switch reaches approximately \u003cstrong\u003e250°F\u003c\/strong\u003e, the switch opens and interrupts furnace operation.\u003c\/p\u003e\n\u003cp\u003eBecause the 78L29 is a \u003cstrong\u003emanual-reset rollout switch\u003c\/strong\u003e, a tripped switch should not simply be repeatedly reset. The furnace should be inspected to determine why the rollout switch opened.\u003c\/p\u003e\n\u003ch2\u003eCompatible Lennox Furnace Models\u003c\/h2\u003e\n\u003cp\u003eThe 78L29 is used in numerous Lennox furnace models, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-24A-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-24A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-36A-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-36A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-36B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-36C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-48B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-48B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG40UH-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-24B-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-24B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-36B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-36C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-48C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG43UF-60D-135\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-24A-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-24A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-36A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-36B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-36C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-48B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-48B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG50UH-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-24B-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-36B-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-36B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-36C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-48C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-60C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG51MP-60D-135\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-24A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-36A-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-36B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-36C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-48B-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG60UH-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-36B-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-36B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-48C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-48C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-60C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MP-60D-135\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-36B-045\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-36B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-36C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-60C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG61MPV-60D-135\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG71MPP-36B-070\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG71MPP-36C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG71MPP-60C-090\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG71MPP-60C-110\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG71MPP-60D-135\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese applications are documented for the 78L29 rollout switch. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eCommon Signs of a Tripped or Failed Rollout Switch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFurnace will not ignite\u003c\/li\u003e\n\u003cli\u003eBurners shut down shortly after ignition\u003c\/li\u003e\n\u003cli\u003eFurnace enters safety lockout\u003c\/li\u003e\n\u003cli\u003eNo continuity through the rollout switch\u003c\/li\u003e\n\u003cli\u003eManual-reset button has tripped\u003c\/li\u003e\n\u003cli\u003eFurnace repeatedly shuts down during a heating call\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA rollout switch that repeatedly trips can indicate a combustion, burner, venting or heat-exchanger problem. The cause should be diagnosed rather than bypassing the safety switch.\u003c\/p\u003e\n\u003ch2\u003eBuy Lennox 78L29 Rollout Switch in Canada\u003c\/h2\u003e\n\u003cp\u003eBuy the \u003cstrong\u003eLennox 78L29 \/ 78L2901 250°F Manual Reset \u003ca href=\"https:\/\/oemhvacpartscanada.ca\/collections\/rollout-switch\"\u003eFlame Rollout Switch\u003c\/a\u003e\u003c\/strong\u003e from \u003ca href=\"https:\/\/oemhvacpartscanada.ca\/\"\u003e\u003cstrong\u003eOemHvacPartsCanada.ca\u003c\/strong\u003e.\u003c\/a\u003e\u003c\/p\u003e","brand":"Oem Hvac Parts Canada","offers":[{"title":"Default Title","offer_id":53765622432020,"sku":null,"price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/6146\/6132\/files\/oem78L29.jpg?v=1788007326","url":"https:\/\/oemhvacpartscanada.ca\/products\/lennox-78l29-78l2901-flame-rollout-switch","provider":"Oem Hvac Parts Canada","version":"1.0","type":"link"}