ICP Hot Surface Igniter Kit for RGS121LEBB0AAAA – With Wiring | Ships Today

Overview

This OEM hot surface igniter kit for the ICP / Tempstar / Heil RGS121LEBB0AAAA furnace includes the igniter (part 1171306) and the matching igniter wiring kit (part 1188370). The hot surface igniter glows red-hot when the control board energizes it, lighting the burners at the start of each heat cycle. The included wiring harness ensures a correct, factory-grade electrical connection to the control. Igniters are brittle and wear out over time — a cracked or burned-out igniter is one of the most common reasons a furnace fails to light. Replacing the igniter together with fresh wiring eliminates intermittent connection faults and restores dependable ignition.

Specifications

Compatibility

Built for the ICP-family RGS121LEBB0AAAA gas furnace and the matching Tempstar, Heil, and Comfortmaker units on the same platform. The included wiring kit (1188370) ensures correct connection to the furnace control board.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the burner compartment door.
3. Document — Photograph the igniter position and wiring routing before disconnecting.
4. Remove — Unplug the igniter connector, remove the mounting screw(s), and carefully withdraw the old igniter without touching the element.
5. Install — Mount the new igniter (handle only by the ceramic base), route and connect the new wiring kit, and confirm correct gap to the burner.
6. Test — Restore power, start a heat call, and confirm the igniter glows and the burners light promptly.

Signs You Need a Replacement

• Furnace clicks and tries to start but burners never light.
• Visible cracks, chips, or breaks in the igniter element.
• Igniter does not glow during a heat call.
• Repeated ignition lockouts after several failed attempts.

Shipping & Returns

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