Laars Heating Systems RA2113100 Combustion Blower

The Laars RA2113100 Combustion Blower is a critical direct-drive component engineered specifically for high-efficiency Laars Heating Systems, primarily the NeoTherm NTH/NTV 399-500 series. As a veteran-grade combustion air blower, this unit ensures precise airflow delivery required to maintain the optimal air-to-fuel ratio during the pre-purge and ignition sequences. Built with a high-torque motor and heavy-duty bearings, it provides the consistent static pressure necessary for residential and commercial boiler parts applications. By replacing a failing or seized Laars blower motor with this OEM-spec assembly, technicians can resolve common ignition failures and intermittent lockouts associated with insufficient combustion air supply.

This replacement combustion blower is designed for rigorous duty cycles, featuring an air-cooled motor that prevents overheating during extended firing periods. The RA2113100 integrated assembly simplifies the installation process for HVAC contractors, ensuring a perfect mechanical fit and electrical compatibility with the existing SOLA controller and wiring harness. Standardized mounting points and durable centrifugal housing optimize performance while reducing operational vibration and noise across various heat loads.

• OEM Compatibility: Exact drop-in replacement for Laars NeoTherm models NTH399, NTV399, NTH500, and NTV500.
• High-Efficiency Performance: Specifically tuned to provide the correct combustion air supply for 399-500 MBH systems.
• Durable Construction: Heavy-duty bearings and a high-torque motor design ensure long-term reliability in demanding hydronic heating environments.
• Consistent Airflow: Precision-balanced blower wheel maintains stable static pressure for clean combustion and reduced CO levels.

• What are the signs of a failing Laars RA2113100 blower? Technicians should look for error code 67 on the digital display, which often indicates pressure switch issues or blower failure. Auditory cues like buzzing, humming, or grinding from the motor bearings also signal imminent failure.
• Does this blower work for both natural gas and propane units? Yes, provided the system's gas valve and venturi are correctly calibrated to match the blower’s airflow for the specific fuel type.
• How do I test if the combustion blower is dead? Verify 120V AC at the power supply terminals. If voltage is present but the blower fails to start during the pre-purge phase, the motor or internal windings are likely compromised.

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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.