Lochinvar & A.O. Smith 100233489 Ventilation Fan

The Lochinvar & A.O. Smith 100233489 Ventilation Fan is a critical OEM replacement component designed for high-efficiency boiler and water heater combustion systems. This axial fan assembly, also identified by part numbers FAN2027 and FAN2027K, operates on 115VAC power at 50/60Hz. As a veteran-grade ventilation fan replacement, it facilitates the precise movement of air into the combustion chamber while ensuring the safe extraction of flue gases. This part is frequently used in Lochinvar Power-Fin and Copper-Fin II models, as well as various A.O. Smith commercial units, to maintain optimal atmospheric pressure and prevent the accumulation of hazardous combustion byproducts. By installing this genuine 100233489 fan, technicians ensure the system maintains its factory-specified thermal efficiency and meets stringent safety protocols for indoor air quality. The rugged 1PH motor is engineered for continuous duty, providing the reliable static pressure required for modern venting configurations and heat exchange processes.

• Universal Compatibility: Directly replaces legacy part numbers FAN2027, FAN2027K, and 100144926 across multiple boiler platforms.
• Consistent Airflow: Engineered as a genuine axial fan to provide the exact CFM required for proper fuel-to-air ratios.
• OEM Durability: Built to withstand the high-temperature environments of commercial and residential heating cabinets.
• Straightforward Integration: Standardized 115VAC electrical leads allow for rapid field replacement during service calls.
• System Protection: Optimizing ventilation reduces carbon buildup and mechanical stress on the heat exchanger.

Is the 100233489 compatible with both Lochinvar and A.O. Smith units?
Yes. This part is a shared OEM component used across several brands under the A.O. Smith umbrella, including Lochinvar. It is specifically designed for units requiring high-performance ventilation and exhaust fans.

Can I use the 100233489 to replace a FAN2027K?
Absolutely. The 100233489 is the current production standard and is technically identical to the FAN2027 and FAN2027K kits. It fits the same mounting footprint and electrical specifications.

What are the signs that my current ventilation fan is failing?
Technicians should look for "soft-lockout" codes related to air pressure switches, excessive bearing noise during startup, or a visible drop in combustion efficiency. Replacing a seized or lagging fan is essential to prevent a complete system shutdown.

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.