{"product_id":"oem-lennox-high-altitude-pressure-switch-kit-18l47","title":"OEM Lennox High Altitude Pressure Switch Kit — 18L47","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 18L47\u003c\/strong\u003e is a genuine OEM High Altitude Pressure Switch Kit designed to monitor and regulate combustion air pressure in Lennox furnaces operating at higher elevations. This switch ensures safe ignition and continuous operation by detecting proper draft pressure before allowing the burners to fire. If your Lennox furnace is failing to ignite, short-cycling, or displaying a pressure switch fault code at altitude, replacing this kit with the OEM \u003cstrong\u003e18L47\u003c\/strong\u003e restores reliable performance and safety.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081034056051,"sku":"LNX-18L47","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-high-altitude-pressure-switch-kit-18l47","provider":"National HVAC Parts","version":"1.0","type":"link"}