ICP Furnace Control Board Kit for RGS091HFCA0AAA — OEM 1183618 | Ships Today

Overview

This genuine OEM control board kit (Part No. 1183618) is the integrated furnace control (IFC) for the ICP / Tempstar / Heil RGS091HFCA0AAA gas furnace. The board is the brain of the furnace: it sequences the inducer, igniter, gas valve, and blower, monitors safety circuits such as the limit and pressure switches, and reads the flame sensor to confirm ignition. It also runs onboard diagnostics, flashing fault codes through an LED. When the board fails, the furnace may be completely dead, fail to start any sequence, short-cycle, or run the blower continuously. Supplied as a kit with the necessary mounting hardware and connectors for a clean swap.

Specifications

Compatibility

Built for the ICP Tempstar Heil RGS091HFCA0AAA furnace and matched ICP-family models specifying control kit 1183618. Always match the part number and connector layout to your existing board, as IFC boards are model-specific.

Installation Guide

1. Safety First — Disconnect power to the furnace at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the furnace blower-compartment service panel to reach the control board.
3. Document — Photograph every plug and wire location on the old board before disconnecting.
4. Remove — Unplug all connectors, release the board from its standoffs or screws, and lift it out.
5. Install — Mount the new board from the kit, transfer connectors exactly per your photo, and set any jumpers/dip switches to match the original.
6. Test — Restore power, run a full heat cycle, and confirm proper sequencing with no fault codes.

Signs You Need a Replacement

• Furnace completely unresponsive with no diagnostic LED
• No inducer, igniter, or blower activity on a heat call
• Erratic short-cycling or blower running nonstop
• Visible burn marks, scorched traces, or a blown onboard fuse

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.