ICP Furnace Control Board Kit for RGS091STCA0AAA — OEM Integrated Control | Ships Today

Overview

This OEM control board kit (part #1183618) is the integrated furnace control (IFC) for the ICP/Tempstar/Heil RGS091STCA0AAA gas furnace. The board is the brain of the furnace: it sequences the inducer, igniter, gas valve, and blower, monitors safety circuits, and reports fault codes through its diagnostic LED. When the board fails, the furnace can show no response, intermittent operation, blower or inducer that won't start, or repeated nuisance lockouts. Common failure causes include power surges, cracked solder joints, failed relays, and burned traces near the gas valve or blower terminals.

Specifications

Compatibility

Supplied as the factory-correct control board for the ICP/Tempstar/Heil model RGS091STCA0AAA and matching furnace chassis in the same series. Verify the board part number printed on your existing control before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, and verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel.
3. Document — Photograph every wire and terminal position on the old board before disconnecting.
4. Remove — Unplug the harness connectors, remove the board mounting screws, and lift out the old control.
5. Install — Mount the new board, transfer connectors one at a time exactly per your photo, and set any required dip switches/jumpers to match.
6. Test — Restore power and run a full heat cycle; confirm proper ignition, blower operation, and a normal diagnostic LED.

Signs You Need a Replacement

• Furnace completely unresponsive with no diagnostic LED
• Inducer, igniter, or blower fails to energize in sequence
• Visible burn marks, swollen relays, or cracked solder on the board
• Persistent fault codes or random lockouts not traced to other components

Shipping & Returns

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