Lochinvar & A.O. Smith 100110163 Circuit Board

The Lochinvar & A.O. Smith 100110163 Circuit Board is a critical OEM replacement part designed for high-efficiency residential and commercial water heaters. As a veteran-grade draft motor control board, this component manages essential combustion system parameters, including blower motor timing and ignition sequence protocols. Field technicians rely on this PC board to resolve frequent ignition failure codes and intermittent power cycling issues. By precisely regulating the draft motor, it ensures proper venting and combustion air flow, which maintains energy efficiency and prevents thermal overload within the heat exchanger.

This genuine OEM part is engineered for a direct "plug-and-play" fit, featuring the correct socket connectors for seamless integration with the existing wiring harness. Its robust architecture is designed to withstand the high-temperature environment of an HVAC cabinet while providing accurate diagnostic feedback via integrated LED indicators. When performing a control board replacement, always verify model compatibility to ensure the microprocessor logic matches the specific firing rate and safety limit requirements of the appliance.

• Optimized Combustion: Precisely controls draft motor speeds to ensure the correct air-to-fuel ratio for high-efficiency water heaters.
• Diagnostic Capability: Features onboard LED status indicators to help HVAC technicians quickly troubleshoot error codes and field faults.
• Direct Compatibility: Designed as an OEM replacement for A.O. Smith and Lochinvar units, ensuring no modifications are needed to the wiring harness.
• System Reliability: Replaces failing CCB circuit boards to eliminate issues like flame sensing errors and blower prover failures.

How do I know if the 100110163 board is faulty?
Common indicators include a persistent ignition failure lockout, the draft motor failing to initiate during the pre-purge cycle, or a lack of power at the gas valve despite a call for heat.

Is this board compatible with both natural gas and propane units?
Yes, this circuit board is designed to manage the ignition control logic for compatible Lochinvar and A.O. Smith models across fuel types, provided the model number matches the manufacturer’s parts list.

Do I need to replace the transformer when installing this board?
While not always required, most professional HVAC contractors check the 24 VAC transformer output during installation to ensure the new control board receives stable voltage.

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.