Lochinvar & A.O. Smith 100074606 Fan Motor

The Lochinvar & A.O. Smith 100074606 Fan Motor is a high-performance OEM replacement part engineered for critical air circulation within commercial rooftop units (RTUs) and air handling units (AHUs). As a veteran-grade indoor blower motor, this component is frequently utilized in high-demand Lochinvar boilers and A.O. Smith water heaters to ensure precise static pressure management and consistent thermal regulation. Weighing approximately 3.25 lbs, its compact yet durable construction is designed to withstand the high-cycle demands of industrial environments while maintaining energy-efficient operation.

This direct-fit fan motor eliminated the need for field modifications, allowing for rapid mechanical room repairs and reduced system downtime. When integrated with HVAC frequency controllers, it provides superior airflow management, optimizing the internal combustion environment and improving overall indoor air quality. Whether you are performing a furnace blower motor replacement or maintaining an A.O. Smith tankless water heater, this genuine 100074606 motor ensures the system operates within original manufacture CFM specifications and pressure tolerances.

Key Benefits for Technicians

• OEM Precision: Specifically calibrated for Lochinvar and A.O. Smith HVAC systems to maintain factory performance ratings.
• High-Efficiency Output: Engineered to reduce operational noise and vibration throughout the ductwork.
• Industrial Durability: Built with premium materials to resist the heat and moisture common in ventilation and cooling applications.
• Streamlined Installation: Features a standard OEM mounting configuration for fast, hands-off replacement in the field.

Common Questions

Is this motor compatible with residential A.O. Smith water heaters?
Yes, the 100074606 fan motor is a common replacement part for select commercial and high-end residential tankless water heaters and boilers. Always verify the part number on the existing motor housing to ensure a proper electrical match.

Can I use this for a rooftop air handler?
This indoor fan motor is specifically designed for RTUs and AHUs that require a dedicated blower assembly for internal air circulation. Its technical specs are optimized for HVAC ventilation in business and industrial properties.

Does this motor include the fan blade or blower wheel?
This SKU (100074606) refers to the fan motor unit itself. If the blower wheel or fan assembly is damaged, those components must be ordered separately to complete the repair.

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.