Resideo Q4100C9046 Hot Surface Ignitor Precise Thermal Calibration: Engineered for

Precise Thermal Calibration: Engineered for fixed 105°F open and 165°F close operation to maintain safe furnace operating parameters

protecting internal electrolytic components from the harsh environments of condenser cabinets

Enhanced Motor Protection: The Slo-Blo/Time Lag characteristic prevents unnecessary outages during high-torque motor starts

As an auto-reset temperature switch

Resideo Q4100C9046 Hot Surface Ignitor Precise Thermal Calibration: Engineered forHandle 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