ICP Furnace Control Board Kit for RGS180SDEA0AAAA — OEM 1183618 | Ships Today

Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP Tempstar Heil RGS180SDEA0AAAA gas furnace. The board is the brain of the furnace — it sequences ignition, monitors safety limits and flame, and controls the inducer, igniter, gas valve, and blower timing. When the board fails you may see a furnace that won't start, blinking diagnostic fault codes, a blower that won't shut off, or no response to the thermostat. This kit is a direct-fit replacement that restores full furnace operation and on-board diagnostics.

Specifications

Compatibility

Direct-fit replacement for the ICP Tempstar Heil RGS180SDEA0AAAA gas furnace. Supplied as a kit for ICP-built Heil, Tempstar, and Comfortmaker furnaces using this control platform. Match your existing board's part number against 1183618 before installing.

Installation Guide

1. Safety First — Disconnect power and shut off gas. Verify zero voltage with a multimeter.
2. Access — Remove the furnace blower-compartment service panel.
3. Document — Photograph every wire harness and terminal on the old board before disconnecting — this is critical for control boards.
4. Remove — Unplug each harness, remove the mounting screws, and lift out the failed board.
5. Install — Mount the new 1183618 board, transfer any jumpers/links, and reconnect every harness exactly per your photos.
6. Test — Restore gas and power, run a full heat cycle, and confirm proper ignition sequence and a clear diagnostic LED.

Signs You Need a Replacement

• Furnace completely unresponsive to the thermostat
• Blinking fault/error codes on the board's diagnostic LED
• Blower or inducer that won't start or won't shut off
• Visible burn marks, scorching, or corrosion on the board

Shipping & Returns

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