ICP Furnace Control Board Kit for RGS091LDCB0AAA — OEM 1183618 | Ships Today

Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for ICP, Tempstar, and Heil RGS091-series gas furnaces. The board is the brain of the furnace: it sequences the inducer, igniter, gas valve, and blower, monitors safety switches and the flame sensor, and manages timing and diagnostics. Power surges, failed relays, blown onboard fuses, corroded traces, and cracked solder joints all cause control board failure. Symptoms include a completely dead furnace, no response to a call for heat, blower or inducer that won't run, or erratic short-cycling. Supplied as a kit for a complete exact-fit replacement.

Specifications

Compatibility

Built for the ICP/Tempstar/Heil RGS091LDCB0AAA and other RGS091-series furnaces specifying this control. Match the part number and connector layout to your existing board before ordering.

Installation Guide

1. Safety First — Disconnect power; verify zero voltage with a multimeter.
2. Access — Remove the blower/control compartment panel.
3. Document — Photograph every connector and wire location before unplugging.
4. Remove — Unplug all harnesses, remove the mounting screws/standoffs, and lift out the old board.
5. Install — Mount the new board and reconnect each harness to its matching connector per your photos.
6. Test — Restore power and run a full heat cycle; confirm proper sequencing and check the diagnostic LED for fault codes.

Signs You Need a Replacement

• Furnace completely dead with no response to the thermostat
• Inducer or blower won't energize
• Erratic short-cycling or random shutdowns
• Diagnostic LED off or flashing a hard fault code

Shipping & Returns

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