ICP Hot Surface Igniter Electrode for RGS300LEFA0AAAA — OEM 1179966 | Ships Today

Overview

This is the genuine OEM ignitor electrode (part number 1179966) for the ICP Tempstar Heil RGS300LEFA0AAAA gas furnace. The igniter electrode produces the high-voltage spark or hot surface that lights the burners on every call for heat. When it fails, the furnace runs through its ignition sequence, fails to light, and locks out — leaving the home without heat. Common symptoms include repeated ignition lockouts, a furnace that clicks but never fires, visible cracking or carbon on the element, and the control board flashing an ignition-failure fault code. Swapping in a fresh electrode is a fast, inexpensive repair that restores dependable ignition.

Specifications

Compatibility

This igniter electrode is the factory-specified replacement for the ICP Tempstar Heil RGS300LEFA0AAAA furnace. ICP-built furnaces ship under several badges — Tempstar, Heil, Comfortmaker, and others — so part 1179966 also services equivalent models across those brands. Confirm your unit's part number against the existing igniter before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker and shut off the gas. Verify zero voltage with a multimeter.
2. Access — Remove the furnace front service panel to expose the burner assembly.
3. Document — Photograph the igniter's mounting position and wire routing before disconnecting.
4. Remove — Unplug the igniter harness, remove the mounting screw(s), and withdraw the old electrode without touching the element.
5. Install — Seat the new igniter in the same position, reinstall the screws, and reconnect the harness per your photo. Handle by the base only.
6. Test — Restore gas and power, then run a heat cycle to confirm the burners light promptly and hold flame.

Signs You Need a Replacement

• Furnace ignites intermittently or locks out after failed attempts
• No heat with the control board flashing an ignition-failure code
• Visible cracks, carbon, or hot spots on the igniter element
• Burners click or attempt to light but never establish flame

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee — if it doesn't fit, we make it right.