Lennox 23V92 - Lennox 607421-34, ECM Constant Torque Blower Motor, Pre-Programmed, 1 HP 115 VAC, 5 Speed, 550-1300 RPM
Lennox 23V92 (607421-34) ECM Constant Torque Blower Motor is a genuine OEM replacement motor designed to deliver reliable, energy-efficient airflow performance in residential and light commercial HVAC systems. This factory pre-programmed ECM motor provides consistent torque across a wide operating range, helping maintain proper airflow even as system conditions change due to duct restrictions, filter loading, or coil resistance.
Built with Lennox engineering standards, this 1 HP ECM constant torque blower motor operates on 115 VAC single-phase power and features five selectable speed taps, allowing precise airflow matching to the original equipment specifications. With an operating speed range of approximately 550 to 1300 RPM, the Lennox 23V92 motor ensures smooth starts, quiet operation, and improved overall system efficiency compared to traditional PSC motors.
The Lennox 607421-34 ECM blower motor is ideal for service replacements where maintaining factory airflow performance and electrical compatibility is critical. Its pre-programmed design eliminates the need for field programming, reducing installation time and minimizing setup errors. ECM technology also helps lower electrical consumption while delivering dependable airflow, making it a cost-effective and performance-driven solution for long-term HVAC reliability.
Key features and benefits
• Genuine Lennox OEM ECM constant torque blower motor
• Part number: Lennox 23V92 / 607421-34
• Motor type: ECM constant torque, factory pre-programmed
• Horsepower: 1 HP
• Voltage: 115 VAC, single phase
• Speed options: 5 speed taps
• Operating range: approximately 550–1300 RPM
• Maintains consistent airflow under varying static pressure
• Quiet operation and improved energy efficiency
• Direct replacement for compatible Lennox air handlers and furnaces
This Lennox ECM blower motor is engineered for technicians and system owners who require OEM fit, performance consistency, and dependable operation. It is commonly used in Lennox furnaces and air handlers that specify a 1 HP, 115V ECM constant torque motor and should always be matched by part number to ensure proper compatibility.