{"product_id":"oem-lennox-pressure-switch-w-bracket-80k26","title":"OEM Lennox Pressure Switch w\/ Bracket — 80K26","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e80K26\u003c\/strong\u003e pressure switch comes with its factory mounting bracket, making it a direct, ready-to-install replacement. As a key furnace safety device, it monitors the negative pressure generated by the draft inducer to confirm proper venting and combustion airflow, and it prevents the burners from firing until a clear exhaust path is proven.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A failing \u003cstrong\u003e80K26\u003c\/strong\u003e often causes the furnace to short-cycle, abort ignition, or throw a pressure switch error code. If the switch sticks open, the furnace won't produce heat; if it drifts out of calibration, you may experience intermittent lockouts and inconsistent heating performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Pressure switches are precisely calibrated to a trip point in inches of water column specific to your furnace model. The genuine Lennox \u003cstrong\u003e80K26\u003c\/strong\u003e, supplied with the correct bracket, ensures the exact setpoint, port arrangement, and secure mounting your system was designed for — safeguarding reliable operation and your warranty. Non-OEM switches with mismatched calibration risk nuisance faults or unsafe combustion conditions.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081094807923,"sku":"LNX-80K26","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-80K26.jpg?v=1783762950","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-pressure-switch-w-bracket-80k26","provider":"National HVAC Parts","version":"1.0","type":"link"}