Lochinvar & A.O. Smith 100208325 Indicator Light

The Lochinvar & A.O. Smith 100208325 Indicator Light is a critical diagnostic component engineered for precision monitoring in commercial and residential HVACR heating systems. This Indicator Light Green 24v provides immediate visual confirmation of system status, typically used to signify "Power On," "Normal Operation," or "Call for Heat" within the integrated control circuit. Designed for seamless integration into Lochinvar boiler and A.O. Smith water heater control panels, this snap-in assembly ensures that technicians can perform rapid status assessments without probing the terminal board. Operating on a 24V AC/DC control signal, it offers a reliable, low-draw feedback mechanism that is compatible with modern electronic ignition modules and Smart System controls. As an OEM replacement part, it guarantees the exact fit and electrical specifications required to maintain the safety integrity and operational transparency of high-efficiency hydronic equipment and commercial gas-fired units.

• Instant Diagnostics: Provides a clear green visual signal to confirm the control board is energized or the unit is in a specific stage of operation.
• High Compatibility: Specifically designed for Lochinvar and A.O. Smith applications, ensuring proper voltage matching and panel fitment.
• Snap-In Installation: Features a snap-in housing for quick field replacement, minimizing downtime during service calls.
• Enhanced Safety: Allows for external monitoring of internal system states, reducing the need to open high-voltage compartments during routine checks.

• What does a flickering green light indicate? In most Lochinvar systems, a steady light indicates normal power, while specific flash codes (if tied to a diagnostic module) might indicate a low voltage or secondary transformer issue.
• Can this be used on 120V circuits? No, this is a 24v green indicator. Using it on 120V line voltage will cause immediate component failure. Always verify your control circuit voltage before installation.
• Is this compatible with older Lochinvar boilers? Yes, the 100208325 is a standard 24V indicator used across multiple generations of Lochinvar and A.O. Smith commercial water heating equipment.

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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.