Resideo Q3400A1024 Flame Rod Assembly

Reliably maintain combustion stability in 24V heating systems with the Resideo Q3400A1024 Flame Rod Assembly. Engineered specifically as a field replacement for Q3450 and Q3480 hot surface pilot burners, this component ensures the flame detection accuracy required for safe burner operation. It is high-performance HVAC replacement hardware designed for seamless integration with Honeywell SmartValves, including the SV9500 and SV9600 series. The assembly features a 30-inch ignition wire with high-temperature insulation rated for 250°C, allowing for versatile routing within the combustion chamber while withstanding intense thermal stress. As a direct OEM replacement for legacy part numbers such as Q3400A1115 and 1009524, it provides the precise fit and electrical compatibility necessary to eliminate nuisance lockouts and ensure consistent ignition cycles in gas-fired furnaces and boilers.

• Broad Compatibility: Serves as a direct replacement for Q3400A1115, Q3400A1024/U, and 1009524.
• SmartValve Integration: Features a unique keyed plug connector specifically designed for SV9500, SV9600, SV9501/SV9601, and SV9502/SV9602 series controls.
• Extended Reach: Includes a 30" ignition wire to simplify field installation in various furnace cabinet configurations.
• High-Temperature Durability: Rated for up to 250°C (482°F), ensuring long-term thermal resistance and preventing terminal degradation.
• Optimized Flame Sensing: Precision-engineered rod design facilitates accurate microamp signal feedback to the SmartValve control.

Is this a direct fit for all Honeywell SmartValve systems?
The Q3400A1024 uses a specific keyed plug connector. It is verified for use with SV9500, SV9600, SV9501/SV9601, SV9502/SV9602, SV9540/SV9640, and SV9541/SV9641 SmartValve models. Always check your specific valve's wiring harness before installation.

Can I use this to replace a standard flame sensor?
No, this is an igniter-flame rod assembly designed specifically for hot surface pilot burners like the Q3450 and Q3480. It functions as both the ignition source and the flame sensor for the pilot flame.

What causes this assembly to fail?
Common issues include carbon buildup on the rod or cracks in the ceramic insulator, which lead to weak flame sensing signals or ignition failure. Replacing the entire assembly ensures the system maintains reliable communication with the gas valve.

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.