ICP Igniter Electrode for RGS300HEEA0AAAA — Direct-Spark Ignition | Ships Today

Overview

This is a genuine OEM igniter electrode (part 1179966) for the ICP / Heil / Tempstar RGS300HEEA0AAAA gas furnace. The electrode delivers the high-voltage spark that lights the burner gas at the start of each heating cycle and, on many designs, also doubles as the flame-sensing rod that proves a flame is present. A failing or cracked electrode is one of the most common causes of no-heat calls: the furnace tries to ignite, the gas valve opens briefly, then the board locks out on a failed-ignition fault. Replacing the electrode restores reliable, on-demand burner ignition.

Specifications

Compatibility

Direct OEM replacement for the ICP/Heil/Tempstar RGS300HEEA0AAAA and other ICP-family furnaces using the same burner ignition assembly. Match the electrode bracket and rod geometry to your existing part before installing.

Installation Guide

1. Safety First — Shut off gas and disconnect power, then verify zero voltage with a multimeter.
2. Access — Remove the furnace burner-compartment service panel.
3. Document — Photograph the electrode position, gap, and wire routing before removing.
4. Remove — Disconnect the high-voltage lead, remove the mounting screw, and lift the old electrode clear of the burner.
5. Install — Seat the new electrode, set it to match the original spark gap and position, and reattach the ignition lead.
6. Test — Restore gas and power, call for heat, and confirm a clean spark and steady burner flame.

Signs You Need a Replacement

• Furnace clicks/sparks but burner won't light
• Repeated lockouts on failed-ignition or flame-sense faults
• Cracked porcelain insulator or corroded electrode tip
• Intermittent ignition or delayed, rough lights

Shipping & Returns

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