{"product_id":"lennox-607421-32-ecm-constant-torque-blower-motor-pre-programmed-1-2-hp-115v-5-speed","title":"Lennox 607421-32 ECM Constant Torque Blower Motor Pre-Programmed 1\/2 HP 115V 5-Speed","description":"\u003ch1\u003eLennox 607421-32 ECM Constant Torque Blower Motor Pre-Programmed 1\/2 HP 115V 5-Speed\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eLennox 607421-32 ECM Blower Motor\u003c\/strong\u003e acts as the high-efficiency \"airflow brain\" of your HVAC system, precision-tuned to maintain consistent air volume across your ductwork. Unlike standard PSC motors, this \u003cstrong\u003eConstant Torque ECM\u003c\/strong\u003e (Electronically Commutated Motor) uses an internal microprocessor to adjust its electrical consumption based on the static pressure of your system. Pre-programmed specifically for \u003cstrong\u003eLennox, Armstrong, and AirEase\u003c\/strong\u003e furnaces, this motor manages the heating, cooling, and continuous fan speeds to ensure maximum comfort and energy savings throughout the seasons.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision OEM Part Number:\u003c\/strong\u003e This is a factory-authorized replacement for \u003cstrong\u003e607421-32\u003c\/strong\u003e (Cat # 23V90), arriving pre-programmed with the specific torque curves required for Lennox equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency ECM Technology:\u003c\/strong\u003e Features a brushless DC design that significantly reduces electrical consumption compared to legacy induction motors, helping lower monthly utility bills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet Startup \u0026amp; Noise Reduction:\u003c\/strong\u003e Engineered with \"Soft Start\" technology to eliminate the abrupt \"bang\" or duct pop associated with motor ignition, providing a whisper-quiet transition to full speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Speed Flexibility:\u003c\/strong\u003e Offers five distinct speed taps, allowing for fine-tuned CFM (Cubic Feet per Minute) adjustments to solve \"hot and cold spot\" issues in multi-story homes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Safety Monitoring:\u003c\/strong\u003e Internally protected against overheating and voltage surges, ensuring the motor shuts down safely before internal components or the blower wheel are damaged.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Lennox \/ Allied Air\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Regal Beloit \/ Genteq\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart #:\u003c\/strong\u003e 607421-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCat #:\u003c\/strong\u003e 23V90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\/SKU:\u003c\/strong\u003e 662551535491 \/ 607421-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 14.20 Pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 115 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 1\/2 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRPM:\u003c\/strong\u003e 550 - 1300 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeeds:\u003c\/strong\u003e 5-Speed Taps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e N\/A (Main Blower Motor)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🛠️ HVAC Depot Pro Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTake a Picture First!\u003c\/strong\u003e Before pulling the wires from the old motor's 5-pin or 16-pin connector, photograph the color-coded speed taps on your control board. Lennox systems often use a specific \"Park\" terminal for unused speeds; miswiring these can cause the motor to run backwards or stay on indefinitely. \u003cstrong\u003eDiagnostic Check:\u003c\/strong\u003e Always inspect your blower wheel (squirrel cage) for dust buildup before installing the new motor. A dirty wheel adds weight and imbalance, which can cause the internal bearings of your brand-new 1\/2 HP motor to fail prematurely.\u003c\/p\u003e\n\u003ch2\u003eCross-Reference\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperseded \/ Legacy:\u003c\/strong\u003e 607421-05, 607421-12, 103426-02, 103426-05\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Equivalents:\u003c\/strong\u003e Genteq 2.3 Series, Model 5SME39HL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLennox Cat #:\u003c\/strong\u003e 23V90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Identifiers:\u003c\/strong\u003e AM50, 10342602, 10342605\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEL280 Series\u003c\/strong\u003e (Suffixes: NE070E36A, NE090E48B, NE110E60C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eML180 Series\u003c\/strong\u003e (Suffixes: E070E36A, E090E48B, E110E60C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e95G1 Series\u003c\/strong\u003e (Suffixes: UH070E36B, UH090E48C, UH110E60C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eG61E Series\u003c\/strong\u003e (Suffixes: 36B-070, 48C-090)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSL280 Series\u003c\/strong\u003e (Suffixes: NV070V36A, NV090V48B)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":52224347734379,"sku":"66255157339","price":670.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/607421-32.jpg?v=1773333412","url":"https:\/\/tophvacparts.com\/products\/lennox-607421-32-ecm-constant-torque-blower-motor-pre-programmed-1-2-hp-115v-5-speed","provider":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","version":"1.0","type":"link"}