Lennox 83M56 Induced Motor Assembly

When you are troubleshooting a pressure switch lockout on a Lennox G43 or G51 series furnace, the Lennox 83M56 Induced Motor Assembly is often the critical component required to restore proper draft. This genuine OEM assembly is a high-performance draft inducer motor designed to facilitate clean combustion by pulling air through the heat exchanger and venting flue gases safely. Operating at 120V AC and 3400 RPM, this 1/20 HP combustion air blower delivers the precise static pressure needed for the system's safety circuit to close. Built with a durable 3.3-frame shaded pole motor, the 83M56 includes the blower housing and 99M77 gasket, ensuring a direct-fit replacement that maintains the original equipment’s airflow specifications and sound profile. For technicians, using this HVAC replacement part avoids the common mounting and vibration issues seen with universal aftermarket alternatives.

• OEM Compatibility: Exact drop-in replacement for 83M56, 81M16, and LB-94724H, eliminating field modifications.
• Complete Assembly: Includes the combustion air blower and necessary mounting gasket for a fast, leak-free installation.
• Precision Performance: Rated at 0.7 Amps and 3400 RPM to meet strict furnace efficiency and safety standards.
• Industrial Build: Features a thermally protected shaded pole motor and sealed ball bearings for consistent operation under high-heat conditions.

• How do I know if the 83M56 is the right part for my Lennox furnace? This assembly is specifically engineered for Lennox G43 and G51 series units. Check your existing motor for catalog number 83M56 or model LB-94724H to ensure a match.
• Does this assembly include the gasket? Yes, the 99M77 gasket is included to ensure the airtight seal required for the pressure switch to function correctly.
• What causes a draft inducer to fail? Bearings typically seize due to moisture in the flue or heat stress, resulting in the "buzzing" sound or a pressure switch stuck open error code on the control board.

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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.