ICP Hot Surface Igniter for RGS120SEAA0AAA — Silicon Nitride with Wiring Kit | Ships Today

Overview

This OEM hot surface igniter (HSI) is the ignition source for your ICP Tempstar Heil RGS120SEAA0AAA gas furnace. When the thermostat calls for heat, the control board energizes this igniter; it glows white-hot and ignites the gas at the burners. The kit includes OEM igniter 1171306 and igniter wiring kit 1188370 for a complete, plug-in replacement. A cracked or burned-out igniter is one of the most common no-heat failures on these furnaces — the element is brittle silicon carbide/nitride and degrades with every heating cycle.

Specifications

Compatibility

Engineered for the ICP Tempstar Heil RGS120SEAA0AAA gas furnace and shared platform models built under the ICP family (Comfortmaker, Heil, Tempstar). Always verify your part number against the unit rating plate before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker; shut off the gas. Verify zero voltage with a multimeter.
2. Access — Remove the lower burner access panel.
3. Document — Photo the igniter mounting bracket and wire routing before disconnecting.
4. Remove — Unplug the igniter connector, remove the mounting screw, and carefully withdraw the old igniter without touching the element.
5. Install — Mount the new igniter (handle only by the ceramic base), install the wiring kit, and reconnect per your photo.
6. Test — Restore gas and power, then start a heating cycle and confirm the igniter glows and the burners light.

Signs You Need a Replacement

• Furnace blower runs but no heat / no flame
• Igniter does not glow or glows weakly
• Visible cracks or white spots on the element
• Repeated lockouts after several ignition attempts

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.