ICP Hot Surface Igniter for WFML090B042B2 — HSI Kit | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This is a genuine OEM hot surface igniter assembly for the ICP Tempstar Heil WFML090B042B2 gas furnace. The kit covers the igniter (part #1176919), its mounting bracket (#1183455), and the snap-in HSI valve assembly (#1176929, ref 36J24618). On each call for heat, the control board energizes the igniter, which glows red-hot and ignites the gas as it leaves the burners. Hot surface igniters are brittle and consumable — they degrade with every heating cycle and are one of the most common no-heat failure points on a modern furnace. A cracked or burned-out igniter will not glow, leaving the furnace to lock out after several failed ignition attempts.
Specifications
| Spec | Value |
|---|---|
| Igniter Part Number | 1176919 |
| Bracket Part Number | 1183455 |
| Snap-In HSI Valve | 1176929 (36J24618) |
| Type | Hot Surface Igniter (HSI) |
| Brand | ICP (Tempstar / Heil) |
| Fit | OEM Direct Replacement |
Compatibility
Engineered as a direct OEM replacement igniter assembly for the ICP Tempstar Heil WFML090B042B2 gas furnace. These igniter and bracket part numbers are shared across many ICP-family furnaces marketed as Tempstar, Heil, Comfortmaker, and Arcoaire. Verify your existing igniter style and bracket footprint against the parts shown before ordering.
Installation Guide
- Safety First — Shut off gas and disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
- Access — Remove the burner-compartment service panel to expose the igniter at the burner assembly.
- Document — Photograph the igniter wiring, connector routing, and bracket orientation before disconnecting.
- Remove — Unplug the igniter connector and unscrew the igniter/bracket. Handle by the ceramic base only — never touch the silicon-carbide element.
- Install — Mount the new igniter and bracket, route the harness clear of the burner flame, and reconnect per your photo.
- Test — Restore gas and power, initiate a call for heat, and confirm the igniter glows and the burners light cleanly.
Signs You Need a Replacement
- Furnace attempts ignition with no flame, then locks out after multiple tries.
- Igniter does not glow during the ignition sequence.
- Visible cracks, blisters, or white spots on the igniter element.
- Intermittent ignition or delayed, rough light-off with a gas smell.
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days