{"product_id":"oem-lennox-limit-switch-10w05","title":"OEM Lennox Limit Switch — 10W05","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10W05\u003c\/strong\u003e limit switch is a high-temperature safety control that monitors the heat exchanger and plenum temperature inside your Lennox furnace. If the furnace overheats — often due to restricted airflow, a dirty filter, or a failing blower — this switch cuts power to the burners to prevent heat exchanger damage and a potential fire hazard. It is calibrated to the precise trip and reset temperatures specified for your Lennox equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include a furnace that short cycles, burners that ignite then shut off after a few minutes, no heat despite the blower running, or repeated safety lockouts. A limit switch that has weakened or failed can trip prematurely or fail to open when it should, leaving your system unprotected.\u003c\/p\u003e\u003cp\u003eInstalling an OEM Lennox \u003cstrong\u003e10W05\u003c\/strong\u003e matters because aftermarket limit switches frequently use incorrect temperature ratings that cause nuisance trips or, worse, fail to protect the heat exchanger. This factory-spec part ensures the exact temperature calibration, mounting fit, and electrical rating your Lennox furnace was designed around for safe, reliable heating.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081136456051,"sku":"LNX-10W05","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-LNX-10W05.jpg?v=1783762456","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-limit-switch-10w05","provider":"National HVAC Parts","version":"1.0","type":"link"}