Robertshaw 41-404n Silicon Nitride Hot Surface Ignitor

Product Description

The ROBERTSHAW 41-404n is a silicon nitride hot surface ignitor designed for use in gas-fired heating equipment. Silicon nitride ignitors are known for their durability and resistance to thermal shock compared to older silicon carbide designs. This ignitor serves as the ignition source in the burner assembly, generating the heat required to light the gas at startup. It is installed by licensed HVAC technicians during routine service or as a direct replacement for a failed ignitor in a gas furnace or similar heating appliance.

The 41-404n is suited for residential and light commercial gas heating applications where a hot surface ignitor is the specified ignition method. It is a common replacement component in gas furnace service work, addressing ignitor failure symptoms such as no-heat calls, failed ignition lockouts, and burner startup faults. Technicians should verify ignitor style, bracket configuration, and electrical connector type before installation to confirm fitment.

Key Features

• Silicon nitride construction offers improved resistance to thermal shock compared to silicon carbide ignitors
• Direct replacement style for gas furnace hot surface ignition systems
• Designed for reliable performance in gas-fired heating equipment
• Compact ignitor element suited for standard burner compartment installation

Compatibility

Designed as an OEM-style replacement hot surface ignitor for residential and light commercial gas furnace applications requiring a silicon nitride ignitor element.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with the appliance manufacturer instructions and applicable local codes. Always shut off gas supply and disconnect electrical power to the furnace before removing or installing the ignitor. Handle the silicon nitride element carefully to avoid contamination from skin oils, and avoid mechanical stress on the element during installation. Consult the furnace wiring diagram and ignitor bracket specifications before completing the replacement.

Technical Specifications

• Ignitor Type: Silicon Nitride Hot Surface Ignitor

Standard Information

• Brand: ROBERTSHAW
• Manufacturer Part Number: 41-404n