{"product_id":"oem-lennox-ecm-3-0-blower-motor-assembly-33w13","title":"OEM Lennox ECM 3.0 Blower Motor Assembly — 33W13","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e33W13\u003c\/strong\u003e ECM 3.0 blower motor assembly drives conditioned air through your Lennox furnace or air handler. As a variable-speed electronically commutated motor, it precisely ramps airflow to match heating and cooling demand, delivering quiet operation, improved comfort, and higher efficiency than standard PSC motors. This complete assembly is a direct factory replacement matched to your Lennox system's airflow profile.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A failing \u003cstrong\u003e33W13\u003c\/strong\u003e motor may cause weak or no airflow, the blower failing to start, intermittent stopping, unusual humming or grinding noises, or blower fault codes on the control board. ECM control module failures can also produce erratic speed behavior or repeated resets during a heating or cooling cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e ECM 3.0 motors are programmed with specific airflow tables that pair with your Lennox control board and furnace tonnage. Generic replacements often lack the correct programming, connectors, or torque rating, leading to poor comfort and premature failure. The genuine Lennox \u003cstrong\u003e33W13\u003c\/strong\u003e assembly ensures correct fit, factory programming, and rated performance for your equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081108636019,"sku":"LNX-33W13","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-33W13.jpg?v=1783760566","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-ecm-3-0-blower-motor-assembly-33w13","provider":"National HVAC Parts","version":"1.0","type":"link"}