Lochinvar & A.O. Smith 100145005 Fan Assembly

The Lochinvar & A.O. Smith 100145005 Fan Assembly is a high-performance combustion blower engineered for precise airflow regulation in condensing boilers and water heaters. As a direct replacement for the FAN3032, this unit is critical for maintaining the correct air-to-gas ratio required for clean combustion and high-efficiency thermal transfer. Designed to operate at 120 VAC with a 107W power draw, it features a Class H coil insulation rating to withstand the elevated internal temperatures synonymous with modern hydronic applications. This OEM blower assembly is compatible with a range of high-efficiency equipment, including the Lochinvar Knight KB210, Knight KB211, Armor AW199, and Armor AWN199-200 series. Whether you are addressing bearing failure or a lockout code, this assembly ensures the static pressure necessary for optimal venting and heat exchanger performance in condensing water heaters and heating boilers.

• Direct OEM Cross-Reference: Identical to FAN3032, 100144930, and FAN2032 for seamless drop-in installation without field modifications.
• Heavy-Duty Construction: Built with Class H insulation to ensure long-term reliability in high-cycle commercial and residential environments.
• Optimized Combustion: Precision-balanced impellers eliminate vibration and provide stable airflow for consistent flame signals and high-efficiency operation.
• Broad Compatibility: Specifically designed for Knight KB210/211 boilers and Armor AW199/200 water heaters.

• Is this the correct replacement for a noisy FAN3032? Yes, the 100145005 is the current manufacturer-designated replacement for the older FAN3032 and 100144930 part numbers.
• Does this include the necessary gaskets? While the assembly is the primary component, technicians typically recommend inspecting and replacing the venturi gas valve gasket and blower gasket during installation to prevent combustion leaks.
• What voltage does this assembly require? This unit is rated for standard 120V, 50/60Hz electrical supply.

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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.