{"product_id":"oem-lennox-pressure-switch-60m35","title":"OEM Lennox Pressure Switch — 60M35","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e60M35\u003c\/strong\u003e pressure switch is a critical safety control that verifies proper draft and venting before your Lennox furnace is allowed to ignite. It monitors the negative pressure created by the inducer motor and only closes its contacts when airflow is adequate, preventing ignition under blocked-vent or failed-draft conditions that could allow dangerous flue gases to accumulate.\u003c\/p\u003e\u003cp\u003eWhen a pressure switch fails or drifts out of calibration, the furnace typically won't light, short-cycles, or locks out with a pressure-switch fault code. You may see the inducer run continuously without ignition, or the unit trip repeatedly on safety. A stuck-open or stuck-closed switch, cracked tubing, or an incorrect trip point all interrupt reliable heating.\u003c\/p\u003e\u003cp\u003eOEM is essential for a safety component like this — the \u003cstrong\u003e60M35\u003c\/strong\u003e is set to the exact pressure setpoint (measured in inches of water column) that your specific Lennox model requires. A generic switch with the wrong rating can allow unsafe operation or cause persistent nuisance lockouts. Installing the factory-spec part restores correct, code-compliant safety operation and dependable ignition for your Lennox furnace.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081099559283,"sku":"LNX-60M35","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-60M35.jpg?v=1783763068","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-pressure-switch-60m35","provider":"National HVAC Parts","version":"1.0","type":"link"}