ICP Ignitor Electrode for RGS300HEAA0AGAA — Direct Spark Ignition | Ships Today

Overview

This is the genuine OEM ignitor electrode (part 1179966) for the ICP RGS300HEAA0AGAA packaged gas/electric unit. On a heat call, the control board sends a high-voltage spark across this electrode to ignite the gas at the burner. The same electrode assembly typically also serves as the flame-sensing rod, confirming a flame is present so the gas valve stays open. A cracked ceramic insulator, a corroded tip, or a misaligned gap will cause ignition lockout, short-cycling on heat, or a no-heat condition. This is a low-cost, high-impact part that should be replaced at the first sign of intermittent ignition.

Specifications

Compatibility

Factory replacement for the ICP / Tempstar / Heil RGS300HEAA0AGAA packaged unit. Confirm the bracket geometry and electrode orientation match 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 burner compartment / service panel.
3. Document — Photograph the ignition lead routing and the electrode position relative to the burner.
4. Remove — Disconnect the ignition lead and remove the electrode mounting screw(s).
5. Install — Mount the new electrode, restore the factory spark gap, and reconnect the ignition lead.
6. Test — Restore gas and power, call for heat, and verify spark, ignition, and steady flame sensing.

Signs You Need a Replacement

• No spark or weak spark at the burner on a heat call.
• Ignition lockout after several failed light attempts.
• Cracked or chipped ceramic insulator.
• Short-cycling on heat or flame-sense faults.

Shipping & Returns

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