{"product_id":"oem-lennox-104549-05-pressure-switch-2-stg-55-35-14a47","title":"OEM Lennox 104549-05 Pressure Switch 2-Stg-.55\/-.35 — 14A47","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 14A47\u003c\/strong\u003e (OEM reference 104549-05) is a factory-original two-stage pressure switch rated at -0.55\/-0.35 inches WC, engineered to confirm that the draft inducer is producing sufficient negative pressure before allowing the Lennox furnace control board to initiate the ignition sequence. Common signs of a failed pressure switch include furnace lockout errors, an inducer motor that runs continuously without ignition, or intermittent no-heat complaints. This genuine Lennox OEM part delivers a direct-fit replacement with factory-calibrated setpoints for reliable two-stage furnace performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081039790451,"sku":"LNX-14A47","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-104549-05-pressure-switch-2-stg-55-35-14a47","provider":"National HVAC Parts","version":"1.0","type":"link"}