Utica-Dunkirk 240005480 Damper Harness

The Utica-Dunkirk 240005480 Damper Harness is a critical electrical link for 72-inch automatic vent damper systems across several high-efficiency boiler lineups. Designed specifically for the Dunkirk WPSB Series II, Utica MAGB, and Utica MGB series, this OEM HVAC wiring harness ensures the vital communication link between your damper motor and the appliance's ignition control module. By facilitating precise timing during the heating cycle, it prevents the burner from firing until the damper is fully open, protecting the heat exchanger and ensuring efficient combustion airflow. For veteran contractors, this harness is the go-to solution for resolving "no-heat" calls caused by broken circuits or terminal corrosion in the flue venting sequence.

• Precise Compatibility: Direct OEM fit for Utica MAGB Series and Dunkirk WPSB series II boilers.
• Optimal Length: Features a 72-inch damper cable to accommodate various boiler jacket clearances and routing requirements.
• System Safety: Properly interfaces boiler safety controls to verify damper position before burner ignition.
• Durable Construction: Built with high-temp insulation to withstand the rigorous environment of residential gas boiler venting systems.

Is the 240005480 harness compatible with other damper brands?
This harness is specifically engineered for original Utica-Dunkirk equipment. While it may look similar to others, the pin configuration is optimized for OEM damper motor replacement on MAGB and MGB units.

Will this resolve a damper end switch failure?
If your troubleshooting confirms continuity issues within the wiring itself or a failed plug-in connection, replacing the harness is the fix. However, if the motor stalls or the end switch won't engage internally, you may need to inspect the damper actuator itself.

Does this harness support 24V control circuits?
Yes, it is designed to carry the 24V signal required to operate the damper motor and return the proving signal to the ignition module through the HVAC part interface.

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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.