ICP Furnace Control Board Kit for RGS180LFEA0AAAA — OEM 1183618 | Ships Today

Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP/Tempstar/Heil RGS180LFEA0AAAA gas furnace. The board manages the ignition sequence, blower and inducer timing, safety interlocks, and diagnostic fault codes. A failed board typically shows as no response on a heat call, the unit stuck on continuous blower, erratic cycling, or a blank/abnormal diagnostic LED. Power surges, moisture, and failed relays on the board are the usual culprits. The kit includes the mounting hardware needed for a clean swap.

Specifications

Compatibility

Designed for the ICP/Tempstar/Heil RGS180LFEA0AAAA furnace and related ICP-family models using control 1183618. Confirm the printed board number on your existing control matches before ordering, as ICP uses several similar IFC boards.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker. Verify zero voltage with a multimeter.
2. Access — Remove the furnace control compartment service panel.
3. Document — Photograph every wire and terminal position on the board before disconnecting anything.
4. Remove — Label and unplug all connectors, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board from the kit and reconnect each wire to the matching terminal per your photos.
6. Test — Restore power, run a full heat cycle, and verify the diagnostic LED shows normal operation with no fault codes.

Signs You Need a Replacement

• No response from the furnace on a heat call
• Blower or inducer runs continuously or won't start
• Diagnostic LED is dark or flashing a board fault code
• Erratic short-cycling unrelated to airflow or igniter faults

Shipping & Returns

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