Fenwal 22-100001-050 Electrode Assembly

The Fenwal 22-100001-050 Electrode Assembly is a critical replacement component for field technicians servicing high-efficiency heating systems and commercial burners. This dual-rod flame sensor and spark electrode is engineered for precise direct spark ignition (DSI), ensuring the high-voltage arc consistently bridges the gap to initiate combustion without carbon tracking or premature insulator failure. It features a high-grade ceramic shell that maintains dielectric strength under fluctuating thermal loads, preventing signal attenuation to the Fenwal ignition control module. Designed for HVAC furnace maintenance and industrial process heating, this assembly provides an accurate microamp feedback signal for reliable flame rectification. Whether you are troubleshooting inconsistent ignition or performing a seasonal gas burner electrode replacement, the 22-100001-050 delivers an exact OEM fit to eliminate field modifications. Its rugged mounting bracket and corrosion-resistant alloy rods are built to withstand the rigorous duty cycles of commercial heating systems, ensuring system uptime and peak performance.

Technical Benefits for Contractors

• High-Temperature Durability: The alumina ceramic insulator prevents electrical leakage and withstands the high-heat environment of the burner head.
• Optimized Spark Gap: Factory-set geometry ensures consistent HVAC spark ignition, reducing the risk of delayed ignition or lockouts.
• Precise Flame Sensing: Delivers a steady microamp signal to the controller for accurate flame detection and safety monitoring.
• Seamless Integration: Direct drop-in component for Fenwal spark ignition systems, simplifying repairs and reducing labor time.

Common Questions

What causes this electrode assembly to fail prematurely?
Most failures result from carbon fouling (soot buildup) on the ceramic insulator or oxidation on the metal rods, which disrupts the spark path or the flame rectification signal. Regular cleaning is essential, but internal cracks in the ceramic often require a full Fenwal 22-100001-050 replacement.

Is the spark gap adjustable on this model?
While the assembly is precision-manufactured to standard specs, always verify the gap against the specific requirements of the burner manufacturer. Improper gapping can lead to erratic ignition or damage to the ignition transformer.

Can I use this for flame sensing only?
Yes, this dual-rod configuration is compatible with systems utilizing remote flame sensing, provided the control module is calibrated for the impedance of this specific electrode.

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.