ICP Hot Surface Igniter for WPG3604115RKC1 — Silicon Carbide 120V | Ships Today

Overview

This is a genuine OEM hot surface igniter (part number 1177663) for the ICP/Tempstar/Heil WPG3604115RKC1 package gas/electric furnace. The igniter is the component that glows red-hot to ignite the gas at the burners on each heat cycle. It operates on 120V and is built from durable silicon carbide that withstands repeated heating and cooling. Over time the igniter element develops hairline cracks and stress fractures from thermal cycling, eventually failing to glow or breaking entirely — the single most common cause of no-heat calls. When this part fails, the furnace will spark or call for heat but never light, often locking out after several failed attempts.

Specifications

Compatibility

Designed as a direct-fit OEM replacement for the ICP WPG3604115RKC1 packaged unit and related Tempstar, Heil, and Comfortmaker models that share the same ignition platform. Always confirm the part number stamped on your existing igniter before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and thermostat, and verify zero voltage with a multimeter.
2. Access — Remove the furnace service/burner access panel.
3. Document — Photograph the igniter wiring and bracket position before disconnecting.
4. Remove — Unplug the igniter connector and unscrew the mounting bracket. Handle the old igniter only by its ceramic base.
5. Install — Mount the new igniter, never touching the silicon carbide element with bare fingers, and reconnect the plug per your photo.
6. Test — Restore power and run a full heat cycle, confirming the igniter glows and the burners light cleanly.

Signs You Need a Replacement

• Furnace calls for heat but burners never ignite
• Igniter no longer glows or glows weakly/unevenly
• Visible cracks or breaks in the ceramic element
• Repeated ignition lockouts or error codes

Shipping & Returns

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