Description
The Utica-Dunkirk 550003151 Flame Sensor Replacement Kit is a factory-authorized service kit designed to restore accurate and dependable flame detection in Utica-Dunkirk heating systems. A properly functioning flame sensor is critical to safe burner operation — it confirms the presence of a flame after ignition and signals the control board to keep the gas valve open. A failed or degraded sensor can cause nuisance lockouts, repeated ignition attempts, or unsafe operating conditions.
Why Replace Your Flame Sensor?
Over time, flame sensors accumulate oxidation and carbon deposits on the sensing rod, reducing the microamp signal sent to the control board. When the signal drops below the control’s threshold, the system shuts down on a safety lockout. Replacing the sensor with a genuine Utica-Dunkirk kit ensures the signal is restored to proper operating levels, eliminating unnecessary service calls and keeping your system running efficiently.
Key Features
- Genuine Utica-Dunkirk replacement kit — engineered for precise fit and function
- Restores reliable flame sensing signal to the burner control board
- Helps prevent nuisance lockouts caused by weak or degraded sensor output
- Supports safe burner operation by accurately detecting flame presence
- Direct OEM replacement — no modifications required for compatible Utica-Dunkirk equipment
- Includes all components necessary for a complete sensor replacement
Application
- Designed for use with compatible Utica-Dunkirk boilers and heating appliances
- Ideal for HVAC technicians performing routine maintenance or troubleshooting ignition lockout faults
Installation Notes
Always de-energize the appliance and allow it to cool before servicing. Verify compatibility with your specific Utica-Dunkirk model before installation. Consult the equipment service manual for proper torque specifications and wiring connections.
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