
Lochinvar & A.O. Smith 100144992 Fan Assembly
The Lochinvar & A.O. Smith 100144992 Fan Assembly is a critical OEM replacement part designed for high-efficiency commercial boilers and water heaters. This 115V blower motor assembly manages precise combustion air delivery, featuring a 1/2 HP motor balanced for high-static pressure applications. Operating at a fixed 1650 RPM, it ensures stable manifold pressure and optimal heat exchanger performance. This unit is the direct manufacturer-mandated replacement for 100144904, correcting common inducer failures and restoring factory-spec airflow sequences. Engineered for A.O. Smith and Lochinvar boilers, the 100144992 provides the necessary torque to clear venting obstructions and maintain consistent flame signals. Contractors should verify the 115v 1/2hp 1650rpm specifications on the existing data plate to ensure compatibility with localized control boards and modulation sequences.
Technical Benefits for Contractors:- Direct OEM Compatibility: Engineered as the exact Lochinvar 100144992 replacement to maintain equipment ETL/UL certifications.
- Optimized Combustion: Precision-balanced 1650 RPM fan assembly reduces vibration and prevents premature bearing wear.
- High-Torque Performance: The 1/2 HP inducer motor provides reliable starts even in cold-air infiltration scenarios.
- Drop-in Installation: Designed specifically for the bolt patterns found in A.O. Smith commercial water heaters and Lochinvar hydronic systems.
Is the 100144992 compatible with older 100144904 series blowers?
Yes, the 100144992 fan assembly is the official superseding part number for the 100144904. It maintains identical electrical specifications (115V, 1/2 HP) and mechanical mounting points for a seamless field retrofit.
What are the primary symptoms of a failing Lochinvar inducer assembly?
Technicians typically identify issues through "pressure switch stuck open" fault codes, excessive bearing noise during the pre-purge cycle, or a failure to reach the 1650 RPM threshold required to close the combustion air proofing switch.
Does this assembly include the necessary gaskets?
As an OEM Lochinvar replacement, this assembly focuses on the motor and housing. It is standard practice to inspect and replace flange gaskets during HVAC blower motor installation to prevent flue gas leakage into the mechanical room.
This item is not eligible for free shipping.
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.
Original: $930.35
-65%$930.35
$325.62Lochinvar & A.O. Smith 100144992 Fan Assembly
The Lochinvar & A.O. Smith 100144992 Fan Assembly is a critical OEM replacement part designed for high-efficiency commercial boilers and water heaters. This 115V blower motor assembly manages precise combustion air delivery, featuring a 1/2 HP motor balanced for high-static pressure applications. Operating at a fixed 1650 RPM, it ensures stable manifold pressure and optimal heat exchanger performance. This unit is the direct manufacturer-mandated replacement for 100144904, correcting common inducer failures and restoring factory-spec airflow sequences. Engineered for A.O. Smith and Lochinvar boilers, the 100144992 provides the necessary torque to clear venting obstructions and maintain consistent flame signals. Contractors should verify the 115v 1/2hp 1650rpm specifications on the existing data plate to ensure compatibility with localized control boards and modulation sequences.
Technical Benefits for Contractors:- Direct OEM Compatibility: Engineered as the exact Lochinvar 100144992 replacement to maintain equipment ETL/UL certifications.
- Optimized Combustion: Precision-balanced 1650 RPM fan assembly reduces vibration and prevents premature bearing wear.
- High-Torque Performance: The 1/2 HP inducer motor provides reliable starts even in cold-air infiltration scenarios.
- Drop-in Installation: Designed specifically for the bolt patterns found in A.O. Smith commercial water heaters and Lochinvar hydronic systems.
Is the 100144992 compatible with older 100144904 series blowers?
Yes, the 100144992 fan assembly is the official superseding part number for the 100144904. It maintains identical electrical specifications (115V, 1/2 HP) and mechanical mounting points for a seamless field retrofit.
What are the primary symptoms of a failing Lochinvar inducer assembly?
Technicians typically identify issues through "pressure switch stuck open" fault codes, excessive bearing noise during the pre-purge cycle, or a failure to reach the 1650 RPM threshold required to close the combustion air proofing switch.
Does this assembly include the necessary gaskets?
As an OEM Lochinvar replacement, this assembly focuses on the motor and housing. It is standard practice to inspect and replace flange gaskets during HVAC blower motor installation to prevent flue gas leakage into the mechanical room.
This item is not eligible for free shipping.
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.
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Description
The Lochinvar & A.O. Smith 100144992 Fan Assembly is a critical OEM replacement part designed for high-efficiency commercial boilers and water heaters. This 115V blower motor assembly manages precise combustion air delivery, featuring a 1/2 HP motor balanced for high-static pressure applications. Operating at a fixed 1650 RPM, it ensures stable manifold pressure and optimal heat exchanger performance. This unit is the direct manufacturer-mandated replacement for 100144904, correcting common inducer failures and restoring factory-spec airflow sequences. Engineered for A.O. Smith and Lochinvar boilers, the 100144992 provides the necessary torque to clear venting obstructions and maintain consistent flame signals. Contractors should verify the 115v 1/2hp 1650rpm specifications on the existing data plate to ensure compatibility with localized control boards and modulation sequences.
Technical Benefits for Contractors:- Direct OEM Compatibility: Engineered as the exact Lochinvar 100144992 replacement to maintain equipment ETL/UL certifications.
- Optimized Combustion: Precision-balanced 1650 RPM fan assembly reduces vibration and prevents premature bearing wear.
- High-Torque Performance: The 1/2 HP inducer motor provides reliable starts even in cold-air infiltration scenarios.
- Drop-in Installation: Designed specifically for the bolt patterns found in A.O. Smith commercial water heaters and Lochinvar hydronic systems.
Is the 100144992 compatible with older 100144904 series blowers?
Yes, the 100144992 fan assembly is the official superseding part number for the 100144904. It maintains identical electrical specifications (115V, 1/2 HP) and mechanical mounting points for a seamless field retrofit.
What are the primary symptoms of a failing Lochinvar inducer assembly?
Technicians typically identify issues through "pressure switch stuck open" fault codes, excessive bearing noise during the pre-purge cycle, or a failure to reach the 1650 RPM threshold required to close the combustion air proofing switch.
Does this assembly include the necessary gaskets?
As an OEM Lochinvar replacement, this assembly focuses on the motor and housing. It is standard practice to inspect and replace flange gaskets during HVAC blower motor installation to prevent flue gas leakage into the mechanical room.
This item is not eligible for free shipping.
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.












