
Lennox 12J55 Motor
The Lennox 12J55 is a high-efficiency ECM blower motor designed for precision airflow control in residential and commercial HVAC systems. This 1/3 HP replacement blower motor operates on 208-230V single-phase power, delivering 600-1200 RPM to maintain consistent static pressure. As an electronically commutated motor, the 12J55 utilizes an integrated control module to adjust torque and speed, significantly reducing energy consumption compared to standard PSC motors. This unit features a 48-frame size, CCW rotation, and rugged ball-bearing construction for heavy-duty cycling. For technicians performing a Lennox furnace motor replacement, the 12J55 provides a direct-drive solution that integrates seamlessly with Lennox control boards. Whether you are addressing an HVAC motor failure or upgrading for better SEER ratings, this genuine OEM part ensures the programmed ramps and airflow profiles match the original equipment specifications for optimal heat exchange and dehumidification.
Key Benefits- High-Efficiency ECM Technology: Reduces amperage draw and operational costs while providing quieter startup and shutdown cycles.
- Variable Speed Range: Operates between 600 and 1200 RPM to adapt to system demand and improve indoor air quality.
- Durable Ball Bearing Design: Engineered for long-term reliability in high-cycle environments, minimizing mechanical friction and heat.
- OEM Compatibility: Precision-programmed for Lennox air handlers and furnaces, ensuring proper CFM delivery without manual calibration.
- NEMA 48 Frame: Standardized housing for straightforward blower motor installation using existing belly band or motor mounts.
Is the 12J55 a direct replacement for Lennox 46132-077?
Yes, the 12J55 is the authorized OEM replacement motor for the 46132-077 and various other 1/3 HP ECM models used in Lennox Elite and Merit series units.
Does this motor require a separate capacitor?
No, ECM motors like the 12J55 do not require an external start/run capacitor as the electronics are housed within the integrated control module.
How can I tell if my blower motor module has failed?
If the motor shaft spins freely but the motor fails to start despite receiving line voltage and a 24V signal, the ECM control module is likely defective and requires a full motor assembly replacement.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $617.07
-65%$617.07
$215.97Lennox 12J55 Motor
The Lennox 12J55 is a high-efficiency ECM blower motor designed for precision airflow control in residential and commercial HVAC systems. This 1/3 HP replacement blower motor operates on 208-230V single-phase power, delivering 600-1200 RPM to maintain consistent static pressure. As an electronically commutated motor, the 12J55 utilizes an integrated control module to adjust torque and speed, significantly reducing energy consumption compared to standard PSC motors. This unit features a 48-frame size, CCW rotation, and rugged ball-bearing construction for heavy-duty cycling. For technicians performing a Lennox furnace motor replacement, the 12J55 provides a direct-drive solution that integrates seamlessly with Lennox control boards. Whether you are addressing an HVAC motor failure or upgrading for better SEER ratings, this genuine OEM part ensures the programmed ramps and airflow profiles match the original equipment specifications for optimal heat exchange and dehumidification.
Key Benefits- High-Efficiency ECM Technology: Reduces amperage draw and operational costs while providing quieter startup and shutdown cycles.
- Variable Speed Range: Operates between 600 and 1200 RPM to adapt to system demand and improve indoor air quality.
- Durable Ball Bearing Design: Engineered for long-term reliability in high-cycle environments, minimizing mechanical friction and heat.
- OEM Compatibility: Precision-programmed for Lennox air handlers and furnaces, ensuring proper CFM delivery without manual calibration.
- NEMA 48 Frame: Standardized housing for straightforward blower motor installation using existing belly band or motor mounts.
Is the 12J55 a direct replacement for Lennox 46132-077?
Yes, the 12J55 is the authorized OEM replacement motor for the 46132-077 and various other 1/3 HP ECM models used in Lennox Elite and Merit series units.
Does this motor require a separate capacitor?
No, ECM motors like the 12J55 do not require an external start/run capacitor as the electronics are housed within the integrated control module.
How can I tell if my blower motor module has failed?
If the motor shaft spins freely but the motor fails to start despite receiving line voltage and a 24V signal, the ECM control module is likely defective and requires a full motor assembly replacement.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Lennox 12J55 is a high-efficiency ECM blower motor designed for precision airflow control in residential and commercial HVAC systems. This 1/3 HP replacement blower motor operates on 208-230V single-phase power, delivering 600-1200 RPM to maintain consistent static pressure. As an electronically commutated motor, the 12J55 utilizes an integrated control module to adjust torque and speed, significantly reducing energy consumption compared to standard PSC motors. This unit features a 48-frame size, CCW rotation, and rugged ball-bearing construction for heavy-duty cycling. For technicians performing a Lennox furnace motor replacement, the 12J55 provides a direct-drive solution that integrates seamlessly with Lennox control boards. Whether you are addressing an HVAC motor failure or upgrading for better SEER ratings, this genuine OEM part ensures the programmed ramps and airflow profiles match the original equipment specifications for optimal heat exchange and dehumidification.
Key Benefits- High-Efficiency ECM Technology: Reduces amperage draw and operational costs while providing quieter startup and shutdown cycles.
- Variable Speed Range: Operates between 600 and 1200 RPM to adapt to system demand and improve indoor air quality.
- Durable Ball Bearing Design: Engineered for long-term reliability in high-cycle environments, minimizing mechanical friction and heat.
- OEM Compatibility: Precision-programmed for Lennox air handlers and furnaces, ensuring proper CFM delivery without manual calibration.
- NEMA 48 Frame: Standardized housing for straightforward blower motor installation using existing belly band or motor mounts.
Is the 12J55 a direct replacement for Lennox 46132-077?
Yes, the 12J55 is the authorized OEM replacement motor for the 46132-077 and various other 1/3 HP ECM models used in Lennox Elite and Merit series units.
Does this motor require a separate capacitor?
No, ECM motors like the 12J55 do not require an external start/run capacitor as the electronics are housed within the integrated control module.
How can I tell if my blower motor module has failed?
If the motor shaft spins freely but the motor fails to start despite receiving line voltage and a 24V signal, the ECM control module is likely defective and requires a full motor assembly replacement.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












