OEM Lennox Draft Inducer Blower Motor — 28M89

The Lennox 28M89 is a genuine OEM draft inducer blower motor that drives the inducer fan to pull combustion gases through the heat exchanger and safely vent them out of your Lennox furnace. By establishing proper draft before the burners fire, it satisfies the pressure switch and ensures safe, efficient, code-compliant combustion.

Common failure symptoms: A worn or failed 28M89 often shows up as a furnace that ignites and shuts down on a pressure-switch lockout, loud humming, grinding, or rattling from the inducer assembly, a motor that hums but won't spin, slow startup, or no heat at all. Bad bearings and burnt windings are frequent causes of these no-heat calls.

Why OEM matters: Draft and venting on a Lennox furnace are calibrated to the exact airflow and RPM of the 28M89. A genuine OEM inducer motor delivers the correct CFM to trip the pressure switch reliably and keep flue gases venting properly — critical for both safety and efficiency. Aftermarket motors with different flow characteristics can trigger nuisance lockouts or unsafe operation. Install the authentic Lennox 28M89 for a proper, safe, direct-fit repair.