{"product_id":"oem-lennox-pressure-switch-24w98","title":"OEM Lennox Pressure Switch — 24W98","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e24W98\u003c\/strong\u003e pressure switch is a critical safety control that confirms proper draft and venting before your furnace is allowed to light. It monitors the negative pressure created by the draft inducer and closes its contacts only when airflow is adequate, protecting your home from unsafe combustion or flue gas spillage.\u003c\/p\u003e\u003cp\u003eWhen this switch fails, the furnace typically won't fire at all. Common symptoms include a unit that starts the inducer but never ignites, repeated lockouts, or a control board flashing a pressure-switch fault code. A cracked switch, ruptured diaphragm, or clogged pressure port will all prevent the contacts from closing correctly.\u003c\/p\u003e\u003cp\u003eOEM sourcing is essential here because the \u003cstrong\u003e24W98\u003c\/strong\u003e is calibrated to a specific pressure set point matched to your Lennox furnace model and venting configuration. An incorrectly rated switch can allow the burner to fire under unsafe conditions or nuisance-trip on a healthy system. This factory replacement guarantees the exact set point and connector fit your Lennox equipment requires.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081111945587,"sku":"LNX-24W98","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-LNX-24W98.jpg?v=1783763009","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-pressure-switch-24w98","provider":"National HVAC Parts","version":"1.0","type":"link"}