{"product_id":"oem-lennox-high-altitude-pressure-switch-kit-18l41","title":"OEM Lennox High Altitude Pressure Switch Kit — 18L41","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 18L41\u003c\/strong\u003e is an authentic OEM High Altitude Pressure Switch Kit engineered specifically for Lennox furnaces used in high-altitude installations. It monitors the pressure differential created by the inducer motor to confirm proper venting before allowing the heating cycle to proceed. Symptoms of a failed \u003cstrong\u003e18L41\u003c\/strong\u003e include furnace lockout, no-heat conditions, or a pressure switch error code — all of which this direct OEM replacement is designed to resolve.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081034121587,"sku":"LNX-18L41","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-high-altitude-pressure-switch-kit-18l41","provider":"National HVAC Parts","version":"1.0","type":"link"}