Lochinvar & A.O. Smith 100110438 Inducer Assembly

The Lochinvar & A.O. Smith 100110438 Inducer Assembly is a critical combustion component engineered for high-recovery commercial water heaters and high-efficiency boilers. Operating at 120V with a fixed speed of 3400RPM, this draft inducer blower is essential for establishing the negative pressure required to close the pressure switch and initiate the ignition sequence. This assembly facilitates the proper venting of flue gases, ensuring the heat exchanger is effectively purged of combustion byproducts before the main burner fires. Designed for precise fitment in specific A.O. Smith and Lochinvar models, it serves as a direct OEM replacement part to restore system performance and maintain safe airflow static pressure levels. The assembly features a robust housing and a balanced blower wheel to minimize vibration and bearing wear in demanding high-duty cycle applications. When troubleshooting "No Heat" codes or pressure switch errors, verifying the inducer motor voltage and RPM is the first step in confirming assembly integrity.

• Precise Airflow Control: Maintains a consistent 3400RPM to ensure stable draft and reliable pressure switch closure.
• OEM Compatibility: Engineered as a direct drop-in for Lochinvar 100110438 and A.O. Smith commercial heating units.
• Enhanced Safety: Effectively clears the combustion chamber of hazardous gases to prevent improper fuel-to-air ratios.
• Durable Construction: Built with high-grade components to withstand the thermal stress of continuous exhaust gas venting.

What are the symptoms of a failing 100110438 inducer motor?
Common indicators include loud screeching or grinding noises from worn bearings, a "failed to ignite" error on the control board, or the inducer assembly failing to initiate during the pre-purge cycle despite receiving 120V power.

Does this assembly include the necessary gaskets?
Standard HVAC inducer replacements often require a specific flange gasket. It is recommended to inspect the current mounting surface and replace any degraded seals to prevent flue gas leakage into the mechanical room.

Can I replace just the motor instead of the whole assembly?
While individual components may be available, veteran technicians prefer the complete 100110438 blower assembly to ensure the fan orifice and blower wheel are perfectly aligned, preventing future performance dips or premature motor failure.

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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.