{"product_id":"oem-lennox-multi-range-pressure-transducer-78m20","title":"OEM Lennox Multi-Range Pressure Transducer — 78M20","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e78M20\u003c\/strong\u003e is a multi-range differential pressure transducer that measures the pressure difference across a filter, coil, or duct section and converts it into an electrical signal the control board can read. This feedback lets your Lennox equipment monitor static pressure, verify airflow, and modulate blower speed for efficient, reliable operation across multiple selectable ranges.\u003c\/p\u003e\u003cp\u003eWhen a pressure transducer fails or drifts out of calibration, you may see erratic blower behavior, nuisance airflow or pressure fault codes, poor dehumidification, or a system that will not stage or modulate correctly. A weak or intermittent signal can leave the control unable to confirm proper airflow.\u003c\/p\u003e\u003cp\u003eInstalling the OEM Lennox \u003cstrong\u003e78M20\u003c\/strong\u003e ensures the exact pressure ranges, output signal, and port fittings the control logic expects. Aftermarket transducers may report inaccurate readings or use incompatible calibration, causing false faults and comfort problems. The factory transducer delivers precise, dependable sensing engineered specifically for your Lennox system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081078587763,"sku":"LNX-78M20","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-multi-range-pressure-transducer-78m20","provider":"National HVAC Parts","version":"1.0","type":"link"}