ICP Furnace Control Board Kit for RGS180LFAA0AAAA — OEM 1183618 | Ships Today

Overview

This is the genuine OEM control board kit (part number 1183618) for the ICP / Tempstar / Heil RGS180LFAA0AAAA gas furnace. The integrated furnace control board is the brain of the system — it sequences the inducer, igniter, gas valve, and blower, monitors safety limits and flame, and stores diagnostic fault codes. A failed board causes no-heat conditions, no blower operation, erratic cycling, or a blank/flashing diagnostic LED. This kit ships with the mounting hardware and instructions needed for a complete replacement, restoring proper timing and safety control to the furnace.

Specifications

Compatibility

Built for the ICP RGS180LFAA0AAAA and the Tempstar, Heil, and Comfortmaker furnaces that specify OEM control board kit 1183618. Verify your existing board part number and connector layout before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the furnace control-compartment service panel.
3. Document — Photograph every connector and wire location on the old board before disconnecting.
4. Remove — Unplug all harnesses, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board with the supplied hardware and reconnect every harness per your photo.
6. Test — Restore power, call for heat, and confirm a full ignition and blower sequence with no fault codes.

Signs You Need a Replacement

• Furnace completely dead or won't respond to a heat call
• Blower or inducer won't run despite good motors
• Erratic cycling or repeated unexplained lockouts
• Blank, frozen, or error-flashing diagnostic LED

Shipping & Returns

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