{"product_id":"oem-lennox-limit-switch-36m62","title":"OEM Lennox Limit Switch — 36M62","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e36M62\u003c\/strong\u003e limit switch is a safety control that senses heat exchanger temperature in your Lennox furnace and interrupts the burners before the unit can overheat. Set to Lennox's exact trip and reset thresholds, it lets normal heating cycles run smoothly while standing guard against dangerous temperature spikes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A worn or miscalibrated limit switch commonly causes short-cycling, burners that ignite and quickly shut down, the blower running nonstop with no heat, or a limit fault on the control board. A switch that fails open will prevent the furnace from firing, while one that responds slowly compromises the safety it's meant to provide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Because this is a temperature-critical safety component, the switch's rating must match your furnace precisely. The factory-specified \u003cstrong\u003e36M62\u003c\/strong\u003e provides the correct trip point, probe length, and mounting for your Lennox equipment, avoiding the nuisance trips and safety gaps that come with generic substitutes. Protect your system with the part Lennox specifies. In stock and ready to ship same day.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081107915123,"sku":"LNX-36M62","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-36M62.jpg?v=1783762530","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-limit-switch-36m62","provider":"National HVAC Parts","version":"1.0","type":"link"}