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This OEM integrated furnace control board kit (part #1183618) is the brain of the ICP/Heil/Tempstar RGS090SECA0AAA gas furnace. It sequences the entire heat cycle — energizing the inducer, proving the pressure switch, powering the hot surface igniter, opening the gas valve, monitoring flame via the sensor, and timing the blower on/off delays. It also manages safety lockouts and flashes diagnostic fault codes via its onboard LED. When this board fails, symptoms range from a completely dead furnace to intermittent no-heat, blower running constantly, or repeated ignition lockouts. This kit ships with the correct board revision and mounting hardware for a direct replacement.
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP / Heil / Tempstar |
| Fits Model | RGS090SECA0AAA |
| Control Voltage | 24V |
| Line Voltage | 120V |
| Diagnostics | Onboard LED fault codes |
Direct factory replacement for the ICP/Heil/Tempstar RGS090SECA0AAA furnace. Because furnace boards are revision-specific, confirm your existing board carries part number 1183618 (or its superseding kit) before installing.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.