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The genuine OEM Lennox 69M31 draft inducer motor assembly powers the combustion blower on your Lennox furnace. This motor and blower housing create the negative pressure that pulls air through the burners and pushes exhaust gases safely out the flue. Reliable inducer operation is essential for the pressure switch to close and allow ignition to begin.
Common failure symptoms: the furnace won't ignite and locks out on a pressure-switch error, the inducer runs noisily with grinding or rattling bearings, it spins slowly or intermittently, or the motor fails to start at all. Overheating and a burning smell can also indicate worn windings or bearings.
Why OEM matters: Lennox builds the 69M31 to exact airflow, RPM, and mounting specifications for your equipment. A factory-correct inducer ensures proper draft, dependable pressure-switch closure, and safe venting of combustion byproducts. Choosing the OEM part avoids fitment and performance problems common with generic replacements and preserves your system warranty.