The Lennox 19C31 is a 1 horsepower Electronically Commutated Motor (ECM) blower motor engineered as a genuine OEM replacement for compatible Lennox heating and cooling systems. ECM technology provides significant advantages over traditional PSC motors, including precise variable-speed operation, reduced energy consumption, and quieter performance — making it an ideal choice for maintaining system efficiency and comfort.
Why Choose an ECM Blower Motor?
ECM blower motors use a brushless DC design controlled by an integrated electronic module, allowing the motor to automatically adjust its speed in response to system demands. This results in more consistent airflow, better humidity control, and lower operating costs compared to single-speed alternatives.
Key Features
- Genuine Lennox OEM replacement blower motor
- 1 HP (horsepower) output for robust airflow delivery
- Electronically Commutated Motor (ECM) technology for variable-speed operation
- Brushless DC design for extended service life and reduced maintenance
- Improved energy efficiency over standard PSC motors
- Quiet, smooth operation across all speed settings
- Designed for direct drop-in replacement in compatible Lennox systems
Applications
- Lennox residential and light commercial air handlers
- Lennox gas furnaces with variable-speed blower assemblies
- Compatible Lennox heating and cooling systems requiring OEM blower motor replacement
Installation Notes
Always verify compatibility with your specific Lennox unit model number before installation. Refer to the equipment’s service manual for wiring diagrams and motor mounting specifications. Installation should be performed by a qualified HVAC technician.








