ICP Ignitor Electrode for RGS303LEFA0AAAA — Direct Spark Ignition | Ships Today

Overview

This OEM ignitor electrode (OEM part 1179966) is the spark assembly that lights the burner on your ICP, Tempstar, or Heil gas furnace. On each heat call the control board sends high voltage to the electrode tip, creating the spark that ignites gas at the burner while the flame-sensing rod confirms a stable flame. Over time the electrode tip erodes, cracks, or develops carbon buildup, leading to weak sparks, delayed ignition, or no ignition at all. Replacing a worn electrode restores reliable, on-demand heat and prevents repeated hard lockouts.

Specifications

Compatibility

Directly fits the ICP/Tempstar/Heil RGS303LEFA0AAAA gas furnace and related Carrier-family RGS-series models that use this electrode for burner ignition. Verify the bracket orientation and gap against the original part before installing.

Installation Guide

1. Safety First — Shut off gas at the valve and disconnect electrical power; verify zero voltage with a multimeter.
2. Access — Remove the furnace burner-compartment door to expose the burner assembly and electrode.
3. Document — Photograph the electrode position, wire routing, and spark gap before removal.
4. Remove — Disconnect the high-voltage lead and unscrew the electrode bracket from the burner assembly.
5. Install — Mount the new electrode, confirm the spark gap matches spec, and reconnect the lead per your photo.
6. Test — Restore gas and power, run a heat cycle, and verify a strong spark and clean burner light-off.

Signs You Need a Replacement

• Furnace clicks but fails to ignite or locks out on ignition failure
• Weak, intermittent, or no visible spark at the electrode
• Delayed ignition with a noticeable gas smell or small boom on light-off
• Cracked ceramic insulator or eroded, carbon-fouled electrode tip

Shipping & Returns

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