{"product_id":"oem-lennox-pressure-switch-58h32","title":"OEM Lennox Pressure Switch — 58H32","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e58H32\u003c\/strong\u003e pressure switch is a critical safety control that verifies proper draft and airflow before your furnace allows ignition. It monitors negative pressure created by the inducer motor and confirms the venting system is clear, permitting the gas valve and igniter to energize only when it is safe to do so. This exact-fit component is engineered specifically for Lennox equipment and its factory-calibrated set point.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When a pressure switch fails or drifts out of calibration, you may experience a furnace that ignites then shuts down, short cycling, no ignition at all, or a control board flashing a pressure switch fault code. Blocked vents, condensate buildup, or a weakening switch diaphragm are frequent culprits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Lennox pressure switches are calibrated to a precise pressure threshold matched to your unit's inducer and heat exchanger design. Installing the genuine \u003cstrong\u003e58H32\u003c\/strong\u003e ensures the switch trips at the correct pressure, protecting against unsafe combustion conditions and preserving your equipment warranty. Aftermarket substitutes with incorrect set points can cause nuisance lockouts or, worse, allow the furnace to run under unsafe draft. Choose the OEM part for guaranteed fit, safety, and reliable heating.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081100902771,"sku":"LNX-58H32","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-58H32.jpg?v=1783763063","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-pressure-switch-58h32","provider":"National HVAC Parts","version":"1.0","type":"link"}