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This OEM hot surface igniter (part 1177663) and matching igniter control board (part 1186861) handle ignition for the gas-heat section of your ICP/Heil/Tempstar WPG4604115RKA1 package unit. On a call for heat, the control board energizes the igniter, which glows white-hot and lights the burners as the gas valve opens. The igniter is a brittle silicon-carbide or silicon-nitride element that degrades with every heating cycle and eventually cracks or fails to reach ignition temperature — the single most common reason a furnace section ignites intermittently or not at all. The control board sequences the igniter, inducer, and gas valve and provides flame-sense feedback; if it fails, the igniter may never receive power. Replacing a weak igniter before it strands you during a cold snap is cheap insurance.
| Spec | Value |
|---|---|
| Part Number | 1177663 (igniter) / 1186861 (igniter control board) |
| Type | Hot surface igniter |
| Brand | ICP / Heil / Tempstar |
| Function | Burner ignition with control-board sequencing |
| Fit | OEM direct replacement |
Direct OEM fit for the ICP/Heil/Tempstar/Comfortmaker WPG4604115RKA1 and ICP-family gas-heat units using this hot surface igniter and igniter control board. Confirm the igniter style and board part number against your existing components before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.