ICP Furnace Control Board Kit for RGS180LEAA0AAAA — OEM 1183618 | Ships Today

Overview

This is the genuine OEM control board kit, ICP part number 1183618, for the ICP / Tempstar / Heil RGS180LEAA0AAAA gas furnace. The integrated furnace control board is the brain of the unit — it manages the ignition sequence, monitors the pressure switch and limit safeties, sequences the inducer and blower, and controls the gas valve. A failed board is one of the most common causes of a furnace that is completely dead, that locks out on ignition, or that runs the blower continuously. Voltage surges, overheating, and aged relays/solder joints are typical failure causes.

Specifications

Compatibility

Designed for the ICP / Tempstar / Heil RGS180LEAA0AAAA furnace and related RGS-series models that use the 1183618 control kit. Match the board part number and connector layout to your existing board before installing.

Installation Guide

1. Safety First — Disconnect power at the switch and breaker and verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel.
3. Document — Photograph every wire and connector on the existing board before disconnecting anything.
4. Remove — Unplug all harness connectors and low-voltage wires, then remove the board mounting screws/standoffs.
5. Install — Mount the new 1183618 board and reconnect every connection exactly per your photos.
6. Test — Restore power, run a heat cycle, and confirm proper ignition, blower timing, and no fault codes.

Signs You Need a Replacement

• Furnace completely unresponsive with no LED activity on the board
• Repeated ignition lockouts despite a good igniter and flame sensor
• Blower runs constantly or never starts
• Visible scorch marks, burnt relays, or cracked solder joints on the board

Shipping & Returns

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