Robertshaw 41-404 Hot Surface Ignitor

The Robertshaw 41-404 Hot Surface Ignitor is a service-ready, high-purity recrystallized silicon carbide furnace ignitor engineered for rapid thermal response in residential and light commercial heating applications. This Norton 271M replacement features a Style C ceramic block and is factory-rated to reach HSL ignition temperatures within 17 seconds at 120V AC. Designed for maximum conductivity, the unit includes 18-gauge nickel-chrome lead wires that are metalized in place for mechanical stability, protected by 4-1/2 inch high-temperature fiberglass insulation rated for professional-grade durability.

For inventory versatility, this 120V hot surface ignitor is compatible with a wide range of gas-fired equipment, including central furnaces, boilers, and unit heaters. This kit includes special mounting adapters and a Style D terminal connector, ensuring seamless integration with existing wiring harnesses. When diagnosing a no-heat call, technicians can rely on the 41-404 as a robust replacement for Weil-McLain 511-330-190 and other OEM components. The silicon carbide element (Crystar™) provides the physical and thermal strength required for high-cycle environments, making it a staple for any HVAC service truck.

• Universal Compatibility: Direct replacement for Norton 271M and Weil-McLain 511-330-190 systems.
• Fast Ignition: Engineered to achieve full glow within a strict 17-second window for reliable sequence of operation.
• Enhanced Protection: 18AWG nickel-chrome leads with fiberglass insulation prevent electrical grounding and thermal degradation.
• Installation Ready: Packaged with mounting adapters and Type D connectors to fit multiple furnace housing styles.

Is the 41-404 compatible with 208/240V systems?
While some furnace modules take a 208/240V input, they typically step down the current to 120V for the ignitor. This model is specifically rated for 120V AC operation.

Can I use this to replace a Norton 271D?
Yes, the 41-404 is a technical equivalent for several 271 series models including the 271D, provided the 4-1/2" lead length and Style D connector match your specific burner configuration.

Does this kit include the mounting bracket?
The package includes various special mounting adapters designed to replicate the original mounting locator for a precise fit in the combustion chamber.

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.