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This OEM control board kit (part 1183618) is the integrated furnace control (IFC) that runs the entire heating sequence on your ICP/Tempstar/Heil RGS150HDBA0AAAA. The board manages inducer operation, hot surface igniter timing, gas valve actuation, flame sensing, blower delays, and onboard safety lockouts. When it fails, the furnace can refuse to start, get stuck in a single stage, flash diagnostic fault codes, or run the blower continuously. Because it sits at the center of the ignition sequence, a faulty control board often mimics igniter, flame-sensor, or gas-valve problems — so it's worth confirming with the LED fault code before replacing. This kit ships with the replacement board ready to drop into your existing harness.
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board Kit |
| Brand | ICP (Tempstar / Heil) |
| Function | Ignition, Blower & Safety Control |
| Application | Gas Furnace |
Built for the ICP/Tempstar/Heil RGS150HDBA0AAAA and related ICP-family furnaces using this control kit. Match the board's connector layout and part number against your existing control before installing.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.