{"product_id":"oem-lennox-limit-switch-28g45","title":"OEM Lennox Limit Switch — 28G45","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28G45\u003c\/strong\u003e limit switch is a temperature-sensitive safety control that protects your furnace from overheating. Positioned to sense heat exchanger temperature, it automatically interrupts the burner circuit when temperatures climb above the safe limit and closes again once conditions return to normal, safeguarding both the equipment and your home.\u003c\/p\u003e\u003cp\u003eWhen this switch begins to fail, you may experience a furnace that short-cycles, trips off during a heating call, or fails to fire at all. Nuisance trips are frequently triggered by dirty filters, closed registers, or weak blower airflow, while a defective switch can open prematurely or stick, leaving the furnace inoperable or unprotected.\u003c\/p\u003e\u003cp\u003eSelecting the OEM Lennox \u003cstrong\u003e28G45\u003c\/strong\u003e guarantees the precise trip and reset temperatures your furnace was engineered to use. Substitute switches with incorrect setpoints can defeat this important safety function or cause frustrating cycling issues. A factory-matched limit switch restores dependable, safe operation to your Lennox heating system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081110012275,"sku":"LNX-28G45","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-28G45.jpg?v=1783762499","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-limit-switch-28g45","provider":"National HVAC Parts","version":"1.0","type":"link"}