ICP Furnace Control Board for RGS150HRCB0AAAA - OEM Kit 1183618 | Ships Today

Overview

This is the genuine ICP/Tempstar/Heil OEM control board kit, part number 1183618, for the RGS150HRCB0AAAA gas furnace. The integrated furnace control (IFC) is the brain of the heating system: it manages the ignition sequence, monitors the flame sensor and pressure switches, sequences the inducer and blower motors, and runs continuous safety diagnostics. When this board fails, the furnace typically locks out, fails to ignite, short-cycles, or runs the blower continuously. Many boards also display a diagnostic LED fault code that points to the failure. This factory kit includes the board pre-configured for your model, ensuring correct timings and safety logic that a universal board cannot guarantee.

Specifications

Compatibility

Designed as the direct OEM replacement for the ICP Tempstar Heil RGS150HRCB0AAAA gas furnace. This board kit is family-specific; always confirm your existing board part number or model serial 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 blower/control compartment service panel.
3. Document - Photograph every wire and connector position on the old board before disconnecting anything.
4. Remove - Unplug the molex harnesses and spade terminals, then unscrew the failed control board from its standoffs.
5. Install - Mount the new 1183618 board, then reconnect each harness exactly per your photos.
6. Test - Restore power, initiate a heat call, and confirm a full ignition cycle with no fault codes.

Signs You Need a Replacement

• Furnace will not ignite or repeatedly locks out
• Blower runs constantly or never starts
• Flashing diagnostic LED fault code on the board
• Visible scorch marks, burnt relays, 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.