ICP Hot Surface Igniter for WPG3604090RKC1 — Furnace Ignition | Ships Today

Overview

This genuine OEM hot surface igniter (part #1177663) for the ICP WPG3604090RKC1 is the component that lights the burners on every heating cycle. When the gas valve opens, the control board sends voltage to the igniter, which glows red-hot to ignite the gas. As one of the most heavily cycled parts in a gas furnace, the igniter's element gradually weakens and eventually cracks, leaving the furnace unable to light. This is the single most common cause of a furnace that runs the inducer and blower but produces no heat.

Specifications

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil WPG3604090RKC1 packaged gas unit. Match the mounting bracket and connector style to your original igniter before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and shut off the gas supply. Verify zero voltage with a multimeter.
2. Access — Remove the burner compartment service panel.
3. Document — Photograph the igniter position and wiring before removal.
4. Remove — Unplug the igniter connector, remove the mounting screw, and carefully withdraw the fragile element. Never touch the new element with bare hands; skin oils shorten its life.
5. Install — Mount the new igniter, reconnect the plug, and confirm proper clearance from the burner.
6. Test — Restore gas and power, call for heat, and verify the igniter glows and lights the burners.

Signs You Need a Replacement

• Furnace runs but burners never light
• Igniter does not glow on a call for heat
• Visible cracks or hot spots on the element
• Furnace locks out after several ignition attempts

Shipping & Returns

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