{"product_id":"oem-lennox-104549-11-pressure-switch-2-stg-70-40-14a53","title":"OEM Lennox 104549-11 Pressure Switch 2-Stg-.70\/-.40 — 14A53","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 14A53\u003c\/strong\u003e (OEM reference 104549-11) is a genuine two-stage pressure switch calibrated to -.70\/-.40 settings, specifically engineered for use in Lennox two-stage HVAC systems to monitor inducer pressure and verify proper venting before allowing ignition. Symptoms of a failing two-stage pressure switch include the system locking out on a pressure fault, failing to advance to second stage, or experiencing nuisance trips during normal operation. This authentic Lennox OEM part provides the precise dual-stage pressure sensing required for safe and efficient performance in compatible Lennox equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081039593843,"sku":"LNX-14A53","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-104549-11-pressure-switch-2-stg-70-40-14a53","provider":"National HVAC Parts","version":"1.0","type":"link"}