{"product_id":"oem-lennox-ecm-blower-motor-assembly-70w47","title":"OEM Lennox ECM Blower Motor Assembly — 70W47","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e70W47\u003c\/strong\u003e ECM blower motor assembly delivers the variable-speed, high-efficiency airflow your Lennox furnace or air handler was engineered for. Unlike a standard PSC motor, this electronically commutated motor precisely modulates speed to maintain consistent comfort, quieter operation, and lower energy consumption while matching the demand of your system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e no airflow from the vents, a blower that won't ramp up or runs at a single speed, intermittent operation, unusual humming or clicking, or repeated tripping on a motor or communication fault. ECM modules are also vulnerable to power surges and moisture, which can disable the onboard controller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e ECM motors communicate directly with the Lennox control board and are programmed for a specific airflow profile. Aftermarket or mismatched motors can cause communication errors, incorrect CFM staging, and comfort problems. The OEM \u003cstrong\u003e70W47\u003c\/strong\u003e assembly guarantees the correct programming, mounting, and connector fit — restoring efficient, whisper-quiet, factory-rated performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081097265523,"sku":"LNX-70W47","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-blower-motor-ecm-LNX-70W47.jpg?v=1783760595","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-ecm-blower-motor-assembly-70w47","provider":"National HVAC Parts","version":"1.0","type":"link"}