{"product_id":"oem-lennox-furnace-limit-switch-97j67","title":"OEM Lennox Furnace Limit Switch — 97J67","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e97J67\u003c\/strong\u003e limit switch is a high-temperature safety control that guards your furnace against overheating. Positioned to read heat exchanger and plenum temperatures, it opens the burner circuit the moment temperatures rise beyond the safe limit — usually a sign of restricted airflow or blower trouble — protecting the heat exchanger and your home.\u003c\/p\u003e\u003cp\u003eA worn or defective limit switch typically causes short cycling, the furnace shutting down before the thermostat is satisfied, the blower running continuously, or an outright no-heat condition. Because it's a safety device, a malfunctioning switch will lock the system out until the fault is corrected.\u003c\/p\u003e\u003cp\u003eFitting an OEM Lennox \u003cstrong\u003e97J67\u003c\/strong\u003e guarantees the switch trips at the exact temperature your furnace model specifies, with the correct dimensions and terminals for a direct fit. Generic substitutes with mismatched setpoints can permit unsafe operation or trigger frustrating nuisance shutdowns. For proper protection and precise compatibility, rely on the factory-original part for your Lennox equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081090842995,"sku":"LNX-97J67","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-97J67.jpg?v=1783761160","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-furnace-limit-switch-97j67","provider":"National HVAC Parts","version":"1.0","type":"link"}