ICP Furnace Control Board Kit for RGS180LFCA0AAAA — OEM Replacement | Ships Today

Overview

This OEM control board kit (part #1183618) is the integrated furnace control (IFC) that manages the entire heating and cooling sequence on your ICP/Tempstar/Heil RGS180LFCA0AAAA gas furnace. The board sequences the inducer motor, igniter, gas valve, and blower, monitors flame sense and pressure-switch inputs, and runs onboard diagnostics with a flash-code LED. Supplied as a complete kit with the hardware and connectors needed for a direct swap. Failure symptoms include a dead furnace with no LED, erratic blower behavior, stuck-on or no-ignition sequences, and repeated fault codes that don't trace to a single component.

Specifications

Compatibility

Direct-fit replacement for the ICP/Tempstar/Heil RGS180LFCA0AAAA and matched Comfortmaker, Arcoaire, and KeepRite furnaces specifying control kit 1183618. Match the board layout and connector pinout to your existing control before installing.

Installation Guide

1. Safety First — Disconnect electrical power and verify zero voltage with a multimeter.
2. Access — Remove the furnace control-compartment door.
3. Document — Photograph every wire harness and terminal connection on the old board.
4. Remove — Unplug the harnesses, release the board standoffs, and lift out the old control.
5. Install — Mount the new board, transfer connectors one at a time, and set any DIP/jumper options to match.
6. Test — Restore power, run a full heat and cool cycle, and confirm the LED shows normal operation with no fault codes.

Signs You Need a Replacement

• No power or no diagnostic LED at the board
• Furnace won't sequence through ignition or blower stages
• Blower runs constantly or won't start
• Persistent or random fault codes after other parts test good

Shipping & Returns

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