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This is the OEM integrated furnace control board kit (part 1183618) for the ICP / Tempstar / Heil RGS150HRCA0AAAA gas furnace. The control board is the brain of the furnace: it sequences the inducer, igniter, gas valve, and blower, monitors the pressure and limit switches, and flashes the diagnostic LED fault codes used during troubleshooting.
Control boards typically fail from surge damage, cracked solder joints, scorched relays, or a failed onboard transformer/fuse. Symptoms include a completely dead furnace, a blower that runs constantly or never starts, no response to a heat call, erratic short-cycling, or a control LED that is dark or stuck on a hard-lockout code. Because this is a complete kit, it ships with the mounting hardware needed for a clean swap.
| Spec | Value |
|---|---|
| Part Number | 1183618 (Control Board Kit) |
| Type | Integrated Furnace Control (IFC) |
| Brand | ICP / Tempstar / Heil |
| Fits Model | RGS150HRCA0AAAA |
| Voltage | 120V primary / 24V control |
| Fitment | OEM Direct Replacement Kit |
Direct-fit replacement for the ICP RGS150HRCA0AAAA furnace and Tempstar/Heil/Comfortmaker units built on the same control platform. Verify 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.