Resideo Q4100C9046 Hot Surface Ignitor The 5/16" diameter prevents the

The 5/16" diameter prevents the rod from bending under the torque generated by high-power spring-return actuators

facilitating a reliable restoration of the sequence of operation without the need for field modifications

preventing water ingress along the motor shaft that can lead to premature bearing failure or winding damage

Contractor-Grade Durability: UL and CSA listed

System Efficiency: Prevents air loss in pneumatic lines

Resideo Q4100C9046 Hot Surface Ignitor The 5/16" diameter prevents theHandle your next service call with the Resideo Q4100C9046, a field proven 120V silicon carbide hot surface igniter designed for maximum durability in gas fired furnaces and boilers. This high temp HSI replacement features a robust ceramic block rated for 392F (200C), ensuring stable performance in both natural gas and liquid propane (LP) applications. The 19 1 8" lead length provides ample slack for complex cabinet routing, while the stripped end