ICP Hot Surface Igniter for WPG3484090RKC1 — OEM Ignitor | Ships Today

Overview

This genuine OEM hot surface igniter (part number 1177663) is the ignition source for the ICP / Tempstar / Heil model WPG3484090RKC1 furnace. On each call for heat, the control board sends voltage to the igniter, which glows red-hot to light the burners. Hot surface igniters are a wear item — the brittle silicon-carbide or silicon-nitride element degrades with every heating cycle and eventually cracks or fails to reach ignition temperature. When it does, the furnace locks out on failed ignition and the home goes cold. Keeping a fresh OEM igniter on hand is the single most common no-heat fix in residential HVAC.

Specifications

Compatibility

A direct-fit replacement for the ICP, Tempstar, and Heil model WPG3484090RKC1 and related furnaces using the same ignition assembly. Confirm the mounting bracket and connector match your original igniter before installing.

Installation Guide

1. Safety First — Turn off the gas and disconnect electrical power, then verify zero voltage with a multimeter.
2. Access — Remove the furnace burner compartment door.
3. Document — Photograph the igniter position and wire routing before disconnecting.
4. Remove — Unplug the igniter connector and remove the mounting screw. Handle only by the ceramic base — never touch the fragile element.
5. Install — Mount the new igniter so the element sits in the burner flame path, then reconnect the plug per your photo.
6. Test — Restore gas and power, call for heat, and confirm the igniter glows and the burners light.

Signs You Need a Replacement

• Furnace locks out with no flame on a call for heat
• Igniter does not glow or glows weakly
• Visible cracks, chips, or white spots on the element
• Repeated ignition retries before the burners light

Shipping & Returns

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