Weil McLain 383-600-070 Ignition Electrode Kit

The Weil McLain 383-600-070 Ignition Electrode Kit is a critical OEM maintenance component engineered specifically for high-output condensing systems. As a veteran technician knows, maintaining precise spark gap and ceramic integrity is vital for avoiding the dreaded Weil McLain Ultra ignition fault. This comprehensive kit is a direct replacement for Weil McLain Ultra 550 and 750 boilers, as well as the SlimFit boiler series. It includes the high-temperature spark electrode, a specialized replacement ignitor gasket to maintain combustion chamber sealing, and all necessary mounting hardware for a secure install.

When you are troubleshooting a gas boiler not firing or experiencing frequent flame signal loss, inspecting the electrode for carbon fouling or hairline ceramic fractures is your first move. This genuine Weil McLain 383-600-070 assembly ensures the ignitor spark gap meets factory specifications, providing reliable combustion system ignition under varying gas pressures. Replacing the gasket during every service prevents flue gas leakage and maintains the pressurized integrity of the heat exchanger assembly. Relying on authentic Weil McLain parts ensures the flame rectification signal remains within the required microamp range for the control module to stay out of lockout.

• Direct Compatibility: Designed specifically for Ultra 550/750 and SlimFit commercial models to ensure perfect fitment.
• Complete Service Kit: Includes the ignitor gasket and hardware, preventing the need for secondary trips to the job site.
• Optimized Performance: Restores factory-spec spark ignition and flame sensing, reducing nuisance service calls and high-temp lockouts.
• OEM Durability: Constructed with high-grade materials to withstand the intense thermal cycling of high-efficiency condensing boilers.

• Does this kit work with the Ultra 155 or 230? No, this specific kit (383-600-070) is sized for the larger Ultra 550 and 750 and SlimFit models; smaller units require a different part number.
• How often should the ignition electrode be replaced? For commercial boiler maintenance, it is best practice to inspect the electrode annually and replace it if the ceramic is cracked or the metal is significantly eroded.
• Why is my boiler showing an 'Ignition Fault' after cleaning the old ignitor? Often, microscopic cracks in the ceramic insulator allow the spark to arc to the bracket rather than the burner, requiring a full electrode kit replacement to restore function.

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.