Lochinvar & A.O. Smith 100208306 Indicator Light

The Lochinvar & A.O. Smith 100208306 Indicator Light is a critical diagnostic component for maintaining the operational integrity of high-efficiency boilers and water heaters. Operating at 28V (and compatible with 24V control circuits), this white indicator light serves as a primary visual interface for monitoring system status and identifying lockout conditions or power faults. This part is a direct factory replacement for MSC2449 and is engineered for seamless integration into commercial and residential control panels. As a veteran technician knows, clear status signaling is essential for shortening service calls and preventing unnecessary downtime. This boiler indicator light is built to withstand high-temperature environments, ensuring steady performance in demanding mechanical rooms. Whether you are performing routine maintenance or a full control board overhaul, using OEM A.O. Smith parts ensures that the electrical resistance and mounting clearances meet original manufacturer tolerances for Lochinvar heating systems.

Key Benefits for Contractors

• Direct Cross-Reference: Fully interchangeable with part number MSC2449, reducing inventory complexity and ensuring a precise fit in existing punch-outs.
• Optimized Visibility: Features a high-intensity white lamp designed to penetrate dust and moisture within mechanical enclosures for clear status monitoring.
• Industrial Build Quality: Constructed for long-term vibration resistance, preventing premature failure common with generic 28V pilot lights.
• Broad Compatibility: Specifically engineered for use across a wide range of Lochinvar and A.O. Smith commercial water heaters and hydronic boilers.

Common Technical Questions

Is the 100208306 indicator light interchangeable with 120V models?
No, this is a 28V indicator light specifically designed for low-voltage control circuits. Applying 120V will cause immediate failure and potential damage to the control board.

Can I use this white indicator light to replace a red or green status light?
While the mechanical fit may be identical, technicians should consult the wiring diagram to ensure the 100208306 logic matches the specific system alert (e.g., power vs. fault) required by the manufacturer.

Does this part include the mounting housing?
This indicator light is designed to snap into standard control panel apertures, utilizing the existing wiring harness connectors for a fast, tool-free installation.

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.