Reznor 101889 Pilot Light

For service technicians and commercial mechanical contractors, the Reznor 101889 Pilot Light is the essential OEM replacement indicator for maintainance and troubleshooting of Reznor unit heaters. This 28V pilot light is engineered for high-visibility signaling in industrial control panels, featuring a red lens that provides a clear visual status of the HVAC burner sequence or alarm circuits. Operating at 1.2 Watts, this component ensures minimal power draw while maintaining superior brightness in low-light utility environments.

When performing a Reznor heater parts installation, utilizing authentic direct-fit components like the 101889 prevents the diagnostic errors commonly associated with off-spec aftermarket substitutes. This indicator is specifically designed for 28-volt secondary control circuits found in diverse Reznor commercial equipment. Its durable construction is built to withstand the thermal cycling and vibration typical of industrial mechanical rooms, ensuring long-term system monitoring reliability and reducing the frequency of nuisance service calls for indicator bulb failures.

Key Benefits

• Direct OEM Replacement: Guaranteed compatibility with Reznor 28V indicator circuits for seamless integration.
• High Visibility: The bright red 1.2W signal provides unmistakable status indication for faster diagnostics.
• Industrial Durability: Performance-rated for the high-temperature environments of commercial heating equipment.
• Reduced Downtime: Simplified snap-in or threaded mounting (depending on model) facilitates rapid field replacement.
• Low Power Consumption: Efficient 1.2-watt draw prevents overloading sensitive control terminal blocks.

Common Questions

Can I use this light in a 24V circuit?
While often used in 24V-28V HVAC control voltage ranges, the Reznor 101889 is specifically rated for 28V to ensure longevity against the voltage fluctuations common in high-output industrial heaters.

How do I confirm if my unit needs the 101889?
Check your unit’s wiring diagram or the panel-mounted indicator for the 28V 1.2W specification. This part is standard across several Reznor series for burner status and lockout signaling.

Does this include the socket or just the bulb/lens?
The 101889 is typically provided as a complete pilot light assembly for a direct swap, minimizing the need for soldering or wire splicing in the field.

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.