Lennox 59M50 Motor

The Lennox 59M50 is a direct-drive, multi-speed blower motor engineered for drop-in compatibility with specific Lennox air handlers and gas furnaces. Operating at 115V with a 1/3 HP output and a rated speed of 1075 RPM, this motor provides reliable airflow across three distinct speed taps. The 59M50 is functionally identical to the Lennox 59M5001 service part, ensuring a seamless swap during field maintenance. Built with a 48-frame diameter and permanent split capacitor (PSC) design, it relies on a dedicated capacitor for optimal torque and efficiency. When diagnosing airflow issues, verify the amperage draw against the nameplate to ensure system performance. This HVAC blower motor replacement is the standard solution for restoring factory-spec static pressure and CFM delivery in residential applications where reliable Lennox furnace motor performance is required.

Technical Key Benefits

• Direct Replacement: Designed as an exact OEM match for 59M5001, eliminating the need for mounting bracket modifications.
• Multi-Speed Versatility: Features 3-speed taps to allow for precise CFM adjustments based on system static pressure.
• Reliable PSC Design: Utilizes a standard permanent split capacitor configuration for high-starting torque and consistent operation.
• Heavy-Duty Construction: Built to withstand the thermal demands of continuous circulation in high-efficiency HVAC cabinets.

Common Technical Questions

Can I use a 230V motor to replace the Lennox 59M50?
No. This motor is rated strictly for 115V. Applying 230V will result in immediate winding failure and potential control board damage.

Are the 59M50 and 59M5001 interchangeable?
Yes, these part numbers refer to the same OEM Lennox motor specifications and are interchangeable in all documented applications.

Does this motor include a new run capacitor?
Standard industry practice requires matching the capacitor to the motor's microfarad (MFD) rating. Always check the motor nameplate and replace the capacitor when installing a new 1/3 HP blower motor to prevent premature failure.

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.