ICP Ignitor Electrode for RGS300SDAA0AAAA — OEM 1179966 | Ships Today

Overview

This genuine OEM ignitor electrode (part #1179966) provides the spark that lights the burner on the ICP / Tempstar / Heil RGS300SDAA0AAAA gas furnace. On each call for heat, the ignition control sends high voltage to the electrode tip, which arcs across its gap to ignite the gas at the burner. A worn, cracked, or carbon-fouled electrode is a leading cause of failed ignition: the furnace may lock out after several trial-for-ignition attempts, short-cycle, or fail to light at all, leaving the home without heat on the coldest days. Replacing the electrode restores a strong, consistent ignition spark and reliable burner light-off. This OEM part is dimensioned to the factory gap and mounting for correct flame positioning.

Specifications

Compatibility

Engineered for the ICP/Tempstar/Heil RGS300SDAA0AAAA furnace and shared-platform models using this electrode. Match the part number and electrode geometry to your unit's parts diagram before ordering.

Installation Guide

1. Safety First — Disconnect power and shut off the gas supply, then verify zero voltage with a multimeter.
2. Access — Remove the burner compartment service panel.
3. Document — Photograph the electrode wiring and its position relative to the burner.
4. Remove — Disconnect the high-voltage lead and unscrew the old electrode from the burner bracket.
5. Install — Mount the new electrode at the same gap and orientation and reconnect the lead per your photo.
6. Test — Restore gas and power and confirm a strong spark and clean burner ignition on a call for heat.

Signs You Need a Replacement

• Furnace locks out after repeated failed ignition attempts
• No spark or a weak, intermittent spark at the burner
• Cracked ceramic insulator or carbon buildup on the electrode tip
• Short-cycling or no heat on a call

Shipping & Returns

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