ICP Hot Surface Igniter Kit for WFML090B042B3 – HSI with Bracket | Ships Today
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Overview
This OEM hot surface igniter (HSI) assembly for the ICP / Heil / Tempstar WFML090B042B3 gas furnace includes the igniter element (part 1176919), its mounting bracket (part 1183455), and the matched HSI hardware referenced by part 1176929 (HSI snap, ref 36J24618). The hot surface igniter glows red-hot on each heat call to ignite the main burners, replacing the older standing-pilot and spark systems. HSIs are the single most common furnace failure point: the brittle silicon-carbide/nitride element cracks from thermal cycling, contamination, or being touched by bare hands. When it fails, the furnace draft inducer and gas valve sequence normally but the burners never light, producing a no-heat / lockout condition.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1176919 (igniter), 1183455 (bracket), 1176929 (HSI snap, ref 36J24618) |
| Type | Hot Surface Igniter (HSI) |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Includes | Igniter element + mounting bracket + hardware |
| Fitment | OEM replacement |
Compatibility
Designed for the ICP/Heil/Tempstar WFML090B042B3 furnace and related WFML-series / ICP-family units using this hot surface igniter and bracket combination. Match the igniter and bracket style to your existing assembly before installing.
Installation Guide
- Safety First – Disconnect power at the furnace switch and breaker, shut off the gas, and verify zero voltage with a multimeter.
- Access – Remove the burner-compartment service panel.
- Document – Photograph the igniter position, bracket, and wiring connector before removal.
- Remove – Unplug the igniter connector and unscrew the bracket; lift the fragile element out without touching the ceramic.
- Install – Mount the new igniter on its bracket, set it in the factory location over the burner, and reconnect the plug — handle by the base only.
- Test – Restore gas and power, then run a heat call and confirm the igniter glows and burners light within the trial-for-ignition period.
Signs You Need a Replacement
- Igniter no longer glows on a heat call.
- Furnace locks out with no burner ignition after the inducer runs.
- Visible crack, blistering, or break in the ceramic element.
- Open circuit / no continuity when the cold igniter is ohm-tested.
Shipping & Returns
Ships same day before 3 PM CST. 30-day 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