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This is a genuine OEM hot surface igniter (part number 1177663) with the matching igniter control board (part number 1186861) for the ICP Tempstar Heil WPG4484090LKA1. The hot surface igniter is an electrically heated element that glows to ignite the burner gas at the start of each heat cycle, while the igniter control board sequences and powers the ignition. HSIs are brittle and degrade with every heating cycle; eventually the element cracks or fails to reach ignition temperature. The most common symptom of a failed igniter is the inducer and gas sequence starting normally but the burners never lighting, often followed by a lockout. Handle the igniter element only by its base — skin oils and physical contact shorten its life.
| Spec | Value |
|---|---|
| Part Numbers | 1177663 (igniter), 1186861 (igniter control board) |
| Type | Hot Surface Igniter |
| Brand | ICP (Tempstar / Heil) |
| Function | Burner ignition element with control |
| Fit | OEM direct replacement |
Direct-fit OEM replacement for the ICP Tempstar Heil WPG4484090LKA1 and equivalent ICP-built Tempstar, Heil, Comfortmaker, and Arcoaire furnaces using igniter 1177663 and control 1186861. Confirm the part numbers on your existing igniter and board before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.