Lochinvar & A.O. Smith 100167794 Control Board

The Lochinvar & A.O. Smith 100167794 Main Control Board is the critical OEM replacement part required for restoring precise logic and sequence of operation to high-efficiency commercial water heaters and hydronic boilers. Designed to function as the primary HVAC integrated furnace control, this board manages ignition timing, flame sensing, and temperature modulation to ensure the unit operates within manufacturer parameters. As a genuine Lochinvar replacement part, it eliminates the communication errors and hardware mismatches often encountered with universal aftermarket boards. Whether you are troubleshooting a lockout or a total system failure, installing this factory-new circuit board ensures full compatibility with existing sensors and gas valves. Field technicians rely on the 100167794 ignition control for its robust build quality and its ability to maintain the high-performance standards required in demanding A.O. Smith water heater repair applications.

Key Benefits for Contractors:

• Direct OEM Compatibility: Specifically engineered for Lochinvar and A.O. Smith commercial units, ensuring exact pin-to-pin wiring alignment.
• Integrated Diagnostics: Features onboard logic to facilitate faster troubleshooting of system faults and water heater error codes.
• Enhanced Operational Stability: Provides precise control over the combustion process, protecting heat exchangers from thermal stress.
• Drop-in Installation: Designed to meet original technical specifications, reducing labor time during emergency service calls.

Common Questions:

What are the symptoms of a failing 100167794 control board?
Common indicators include intermittent loss of flame signal, failure to initiate the inducer motor, or erratic temperature readings that do not match thermistor resistance values.

Does this board require specialized programming?
This 100167794 main control is pre-configured to manufacturer specifications for compatible models, typically requiring only correct DIP switch settings or jumper configurations as per the boiler wiring diagram.

Can I use this to replace older Lochinvar part numbers?
Yes, the 100167794 frequently supersedes several older legacy part numbers. It is recommended to verify your specific model and serial number to ensure a correct match.

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.