Lennox 23C01 – 607421-26 ECM Constant Torque Blower Motor is a factory-specified replacement motor designed for reliable airflow performance in Lennox residential HVAC systems. This pre-programmed ECM motor delivers consistent torque across varying static pressures, helping maintain proper airflow while reducing electrical consumption compared to standard PSC motors.

Rated at 1/2 HP and operating on 115 VAC single-phase power, this motor features a constant torque design with five selectable speed taps and a variable operating range up to 1100 RPM. The ECM technology allows the motor to automatically adjust output to system demand, supporting improved comfort, quieter operation, and enhanced system efficiency. Supplied pre-programmed from the factory, it is ready for direct replacement without additional setup or field programming.

This motor is commonly used in Lennox air handlers and furnaces requiring a constant torque ECM solution and is ideal for service replacements where maintaining OEM airflow characteristics is critical.

 

Key features:

• OEM Lennox ECM constant torque blower motor
• Pre-programmed for direct replacement
• 1/2 HP output, 115 VAC single-phase
• Five speed taps with up to 1100 RPM
• Maintains consistent airflow under changing static pressure
• Improved efficiency and reduced operating noise
• Designed for long service life in residential HVAC systems

 

Technical specifications:

Manufacturer: Lennox
Catalog number: 23C01
Model / part number: 607421-26
Motor type: ECM constant torque blower motor
Horsepower: 1/2 HP
Voltage: 115 VAC
Phase: 1 phase
Speeds: 5
Speed range: 0–1100 RPM
Programming: Factory pre-programmed