Lochinvar & A.O. Smith 100208305 Indicator Light

When you are troubleshooting Copper-Fin II series units or A.O. Smith industrial water heaters, having a reliable visual reference for the 120V circuit status is critical. The Lochinvar & A.O. Smith 100208305 Indicator Light is the OEM direct replacement for the legacy MSC2448. This neon indicator light is designed for a precise snap-in installation, ensuring a secure fit in the control panel housing without the need for additional hardware. Operating at a standard 120V rating, this component provides immediate feedback to service technicians, allowing for rapid diagnostics of system power and burner sequencing.

As an identical replacement for the MSC2448 indicator light, this part maintains the original equipment electrical specifications and physical dimensions required for HVAC equipment maintenance. Whether you are performing a boiler replacement or a routine water heater repair, using OEM HVAC parts like the 100208305 ensures that the diagnostic indicators match the factory-wiring schematics. This light is commonly utilized in commercial heating applications where consistent monitoring of the operational status is necessary to prevent extended downtime.

• OEM Compatibility: Specifically engineered for Lochinvar Copper-Fin II CH/CF/CP 401-751 models and equivalent A.O. Smith commercial units.
• Snap-In Mounting: Features a snap-in style bezel for fast, tool-free installation into standard panel cutouts.
• High Visibility: Utilizes a neon indicator bulb for long-lasting performance and clear visibility in mechanical rooms.
• Standard Voltage: Rated for 120V applications, making it a drop-in solution for most standard control circuits.

Is the 100208305 a direct swap for the MSC2448?
Yes, the 100208305 is the manufacturer-updated part number and is technically identical to the MSC2448. No wiring modifications are required for the swap.

What does it mean if my indicator light is not illuminated?
If the 120V signal is present at the terminals but the light is dark, the neon bulb has likely reached its end of life. During HVAC system diagnostics, always verify line voltage at the light to confirm the issue isn't a tripped high-limit or blown fuse elsewhere in the circuit.

Can this light be used in pool heaters?
Yes, this 120V indicator light is frequently found in Lochinvar pool heaters that utilize the Copper-Fin II chassis, provided the control circuit operates at 120V.

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.