Fenwal 05-100000-422 Ignitor Sensor

The Fenwal 05-100000-422 Ignitor Sensor is a precision-engineered flame sensor designed for high-performance gas ignition systems. As a direct replacement for 22-100000-551, this component is critical for flame rectification, ensuring the ignition control board accurately detects the presence of a flame to maintain safe combustion. Built with high-quality glazed Alumina ceramics and robust rod metals, this sensor is designed to withstand extreme thermal stress, with a temperature tolerance up to 2175°F (1190°C). For technicians, this Fenwal ignition control part offers seamless integration into the flame safeguard circuit, preventing nuisance lockouts and ensuring consistent appliance operation. The compact design allows for straightforward installation in tight burner compartments across residential and commercial heating equipment. When replacing legacy sensors like the 22-100000-614, minor field bending may be required to match specific burner configurations. Utilizing CSA certified and RoHS compliant materials, the 05-100000-422 provides the reliability required for intensive HVACR applications.

• Direct OEM Replacement: Engineering-matched to replace Fenwal 22-100000-551 and compatible with a wide range of Fenwal ignition modules.
• High-Temperature Durability: The glazed Alumina ceramic insulator prevents electrical leakage even when exposed to temperatures reaching 2175°F.
• Precise Flame Detection: Optimizes the flame rectification circuit to ensure the control board receives a clear microamp signal, reducing system downtime.
• Industry Standard Compliance: Meets CSA and RoHS requirements for safety and environmental standards in gas-fired equipment.

Is the Fenwal 05-100000-422 compatible with my current ignition system?
This ignitor sensor is designed specifically for Fenwal ignition controls. It serves as the official replacement for 22-100000-551 and can often replace legacy models, though you should verify the mounting bracket and rod length for your specific burner.

How do I troubleshoot a 05-100000-422 sensor if the system is locking out?
First, inspect the ceramic insulator for cracks and the rod for carbon buildup. Ensure the sensor is positioned so it is engulfed by the flame (not just the tip). If the flame rectification signal is below 0.3 microamps, clean the rod with a non-conductive abrasive or check the system ground.

Can this sensor be used in commercial cooking equipment?
Yes, Fenwal flame sensors are widely utilized in commercial ovens, boilers, and industrial furnaces due to their high operating temperature threshold and reliable performance in demanding environments.

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.