Lennox 93K98 Combustion Air Blower

The Lennox 93K98 Combustion Air Blower is an OEM replacement assembly engineered for high-efficiency residential gas furnaces. Also identified by part number 93K9801 and manufactured by Fasco (Model 70626037), this draft inducer motor is critical for maintaining the pressure delta required to close the furnace pressure switch and initiate the ignition sequence. Constructed with a Permanent Split Capacitor (PSC) motor, it operates on 115V at 50/60Hz, pulling approximately 1.9 Amps. This dual-speed unit delivers a performance range of 2800-3400 RPM, ensuring positive venting of flue gases through the heat exchanger. The motor features a thermally protected, Class B insulated design with sealed ball bearings to withstand the high-temperature environment of an exhaust vent system. This specific assembly replaces legacy part numbers including 78L31, 54M54, 43L31, and the LB-91396 series. For contractors, this is a direct-fit HVAC replacement part that restores safe combustion and prevents code-tripping in compatible Lennox heating systems like the HM30-100-1 series.

• Precise Airflow Regulation: Maintains the specific static pressure needed to exhaust combustion byproducts safely.
• OEM Direct-Fit Compatibility: Replaces Lennox 93K9801 and multiple legacy codes without requiring structural modification.
• Industrial-Grade Components: Equipped with a Fasco U62B1 motor and high-temp gaskets for thermal resilience.
• Plug-and-Play Integration: Standard 115V operation with factory-calibrated speed settings for immediate furnace repair duty.

Is the Lennox 93K98 interchangeable with the 93K9801?
Yes, the 93K98 and 93K9801 are technically identical components. Both units utilize the same Fasco motor assembly and housing specifications.

What are the signs that this draft inducer needs replacement?
Technicians should look for a failed ignition sequence where the motor hums but fails to rotate, or instances where the pressure switch remains open despite the motor running, often indicating a failing wheel or internal bearing drag.

Does this assembly include the necessary gaskets?
Yes, the 93K98 kit typically includes the combustion blower assembly, mounting gaskets, and a rubber plug to ensure a sealed combustion air path.

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.