ICP Hot Surface Igniter for WPG4364090RKA1 — OEM 1177663 | Ships Today
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Overview
This genuine OEM hot surface igniter (part number 1177663) is the ignition source for the ICP/Tempstar/Heil WPG4364090RKA1 packaged gas/electric unit, and this listing also covers the matching igniter control board (part number 1186861). On a call for heat, the control board energizes the hot surface igniter, which glows red-hot to light the main burners once the gas valve opens. Hot surface igniters are brittle silicon-carbide or silicon-nitride elements that degrade with every heating cycle and eventually crack or lose the ability to reach ignition temperature, producing the classic symptom of an inducer that runs while the burners never light.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1177663 (igniter), 1186861 (igniter control board) |
| Type | Hot surface igniter |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Function | Direct ignition of main burners |
| Connection | Plug-in igniter harness |
| Fitment | OEM direct replacement |
Compatibility
Factory-exact replacement for the ICP WPG4364090RKA1 packaged gas/electric unit and related Tempstar, Heil, and Comfortmaker WPG-series equipment that shipped with igniter 1177663 and control board 1186861. Handle the igniter only by its ceramic base — never touch the silicon element.
Installation Guide
- Safety First — Disconnect power and shut off the gas supply, then verify zero voltage with a multimeter.
- Access — Remove the burner/control service panel.
- Document — Photograph the igniter bracket position and harness routing before disconnecting.
- Remove — Unplug the igniter harness and unscrew the igniter from the burner assembly, handling it only by the ceramic base.
- Install — Mount the new igniter at the correct position over the burner, reconnect the harness, and replace the control board if included.
- Test — Restore gas and power, start a heat cycle, and confirm the igniter glows and the burners light on the first attempt.
Signs You Need a Replacement
- Inducer runs but burners never ignite.
- Igniter does not glow or glows weakly on a heat call.
- Visible cracks or breaks in the silicon element.
- Furnace locks out after several failed ignition attempts.
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