{"product_id":"oem-lennox-pressure-switch-2-stage-68-35-73w33","title":"OEM Lennox Pressure Switch 2 Stage (.68\/.35) — 73W33","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 73W33\u003c\/strong\u003e is a genuine OEM 2-stage pressure switch rated at .68\/.35 inches of water column, used in Lennox gas furnaces to confirm that the inducer motor is creating adequate negative pressure before the ignition sequence begins. This critical safety component prevents furnace operation under unsafe venting or draft conditions that could result in carbon monoxide exposure or system damage. If your Lennox furnace locks out on a pressure switch error, fails to start, or the inducer runs without ignition, the \u003cstrong\u003e73W33\u003c\/strong\u003e should be inspected and replaced as needed.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081038250355,"sku":"LNX-73W33","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-pressure-switch-2-stage-68-35-73w33","provider":"National HVAC Parts","version":"1.0","type":"link"}