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This genuine OEM hot surface igniter (part number 1177663, with related control/igniter board reference 1186861) lights the gas burners on the heating side of your ICP WPG4484090RKA1 packaged gas/electric unit. On a heat call, the control board sends voltage to the igniter, which glows white-hot to ignite the gas as the valve opens. Hot surface igniters are brittle silicon-carbide or silicon-nitride elements that degrade with every cycle and eventually crack or lose conductivity. When the igniter fails, the furnace will not light, leaving you with no heat, repeated ignition lockouts, or a unit that runs the inducer and then shuts down.
| Spec | Value |
|---|---|
| Part Numbers | 1177663 (igniter), 1186861 (control board igniter) |
| Type | Hot Surface Igniter |
| Brand | ICP / Tempstar / Heil |
| Function | Gas burner ignition |
| Fits Model | WPG4484090RKA1 |
| Fitment | OEM Direct Replacement |
Specified for the heating section of the ICP WPG4484090RKA1 packaged gas unit and the related Tempstar, Heil, and Comfortmaker models built on the same chassis. Handle the igniter only by its ceramic base — oils from skin will create hot spots that shorten its life.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.