
Lennox 75M78 Blower
The Lennox 75M78 (also known as 75M7801) is a critical OEM replacement inducer blower designed for high-performance combustion air management in specific Lennox gas furnace units. This 1/10 HP combustion air blower operates on a 208-230V single-phase power supply at 60Hz and is engineered as a Permanent Split Capacitor (PSC) motor for reliable, continuous-duty cycles. With a high-speed rating of 3200 RPM and a pull of 0.9 Amps, it maintains the precise static pressure required for safe flue gas extraction and efficient fuel-to-air ratios. The assembly features a counter-clockwise lead end (CCWLE) rotation, ensuring a direct drop-in fit for contractors servicing Lennox RTU and residential systems where the original draft inducer assembly has failed due to seized bearings or winding thermal overload.
Key Benefits- Direct OEM Compatibility: Engineered as a genuine Lennox 75M78 replacement to ensure exact physical mounting and electrical lead alignment, reducing labor time during field installations.
- High-Efficiency Output: The 3200 RPM output is calibrated to optimize the combustion process, helping the furnace maintain its original AFUE efficiency ratings.
- Robust PSC Design: The 1/10 HP motor utilizes a standard capacitor start to deliver consistent torque, minimizing vibration and noise levels during the heating cycle.
- Industrial Build Quality: Constructed with durable materials to withstand the high-temperature flue gases typically encountered in combustion air blower applications.
Is the 75M78 a direct replacement for the 75M7801?
Yes, the Lennox 75M78 and 75M7801 are the same technical part number. It is the standard OEM replacement for Lennox systems requiring a 1/10 HP 208-230V inducer.
What are the signs that my current combustion blower needs replacement?
Technicians should look for E201 error codes on the control board, high-pitched bearing noise, or a failure of the pressure switch to close during the ignition sequence, which often indicates the draft inducer motor is under-speed or seized.
Is this blower compatible with multi-stage Lennox furnaces?
Compatibility is determined by the specific Lennox model number. This single-speed 3200 RPM blower is typically used in commercial RTU and residential furnace models that call for a 208-230V combustion air blower.
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.
Lennox 75M78 Blower
The Lennox 75M78 (also known as 75M7801) is a critical OEM replacement inducer blower designed for high-performance combustion air management in specific Lennox gas furnace units. This 1/10 HP combustion air blower operates on a 208-230V single-phase power supply at 60Hz and is engineered as a Permanent Split Capacitor (PSC) motor for reliable, continuous-duty cycles. With a high-speed rating of 3200 RPM and a pull of 0.9 Amps, it maintains the precise static pressure required for safe flue gas extraction and efficient fuel-to-air ratios. The assembly features a counter-clockwise lead end (CCWLE) rotation, ensuring a direct drop-in fit for contractors servicing Lennox RTU and residential systems where the original draft inducer assembly has failed due to seized bearings or winding thermal overload.
Key Benefits- Direct OEM Compatibility: Engineered as a genuine Lennox 75M78 replacement to ensure exact physical mounting and electrical lead alignment, reducing labor time during field installations.
- High-Efficiency Output: The 3200 RPM output is calibrated to optimize the combustion process, helping the furnace maintain its original AFUE efficiency ratings.
- Robust PSC Design: The 1/10 HP motor utilizes a standard capacitor start to deliver consistent torque, minimizing vibration and noise levels during the heating cycle.
- Industrial Build Quality: Constructed with durable materials to withstand the high-temperature flue gases typically encountered in combustion air blower applications.
Is the 75M78 a direct replacement for the 75M7801?
Yes, the Lennox 75M78 and 75M7801 are the same technical part number. It is the standard OEM replacement for Lennox systems requiring a 1/10 HP 208-230V inducer.
What are the signs that my current combustion blower needs replacement?
Technicians should look for E201 error codes on the control board, high-pitched bearing noise, or a failure of the pressure switch to close during the ignition sequence, which often indicates the draft inducer motor is under-speed or seized.
Is this blower compatible with multi-stage Lennox furnaces?
Compatibility is determined by the specific Lennox model number. This single-speed 3200 RPM blower is typically used in commercial RTU and residential furnace models that call for a 208-230V combustion air blower.
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 75M78 (also known as 75M7801) is a critical OEM replacement inducer blower designed for high-performance combustion air management in specific Lennox gas furnace units. This 1/10 HP combustion air blower operates on a 208-230V single-phase power supply at 60Hz and is engineered as a Permanent Split Capacitor (PSC) motor for reliable, continuous-duty cycles. With a high-speed rating of 3200 RPM and a pull of 0.9 Amps, it maintains the precise static pressure required for safe flue gas extraction and efficient fuel-to-air ratios. The assembly features a counter-clockwise lead end (CCWLE) rotation, ensuring a direct drop-in fit for contractors servicing Lennox RTU and residential systems where the original draft inducer assembly has failed due to seized bearings or winding thermal overload.
Key Benefits- Direct OEM Compatibility: Engineered as a genuine Lennox 75M78 replacement to ensure exact physical mounting and electrical lead alignment, reducing labor time during field installations.
- High-Efficiency Output: The 3200 RPM output is calibrated to optimize the combustion process, helping the furnace maintain its original AFUE efficiency ratings.
- Robust PSC Design: The 1/10 HP motor utilizes a standard capacitor start to deliver consistent torque, minimizing vibration and noise levels during the heating cycle.
- Industrial Build Quality: Constructed with durable materials to withstand the high-temperature flue gases typically encountered in combustion air blower applications.
Is the 75M78 a direct replacement for the 75M7801?
Yes, the Lennox 75M78 and 75M7801 are the same technical part number. It is the standard OEM replacement for Lennox systems requiring a 1/10 HP 208-230V inducer.
What are the signs that my current combustion blower needs replacement?
Technicians should look for E201 error codes on the control board, high-pitched bearing noise, or a failure of the pressure switch to close during the ignition sequence, which often indicates the draft inducer motor is under-speed or seized.
Is this blower compatible with multi-stage Lennox furnaces?
Compatibility is determined by the specific Lennox model number. This single-speed 3200 RPM blower is typically used in commercial RTU and residential furnace models that call for a 208-230V combustion air blower.
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.












