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This OEM integrated furnace control board (kit part number 1183618) is the brain of your ICP / Tempstar / Heil RGS090SEBA0AAA gas furnace. It manages the entire heating sequence — energizing the inducer, proving the pressure switch, firing the hot surface igniter, opening the gas valve, timing the blower on/off delays, and monitoring flame sense and safety limits. When the board fails, the furnace may go completely dead, fail to start the blower, short-cycle, or throw repeating diagnostic flash codes. Because the board ties together every other component, a failed board is often misdiagnosed as a bad igniter, motor, or gas valve. This kit ships with the OEM board and mounting provisions for a direct replacement.
| Spec | Value |
|---|---|
| Part Number | 1183618 (KIT CONTROL BOARD) |
| Type | Integrated furnace control board |
| Brand | ICP / Tempstar / Heil |
| Fitment | OEM |
| Function | Ignition, blower timing, safety control |
| Application | Gas furnace |
Direct-fit replacement for the ICP / Tempstar / Heil RGS090SEBA0AAA 90,000 BTU gas furnace. ICP-family RGS-series furnaces use this control platform; verify your existing board carries kit number 1183618 before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.