ICP Furnace Control Board Kit for RGS101LTCB0AAA — OEM 1183618 | Ships Today

Overview

This genuine OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP / Tempstar / Heil RGS101LTCB0AAA gas furnace. The board is the brain of the system: it manages the ignition sequence, sequences the inducer and blower motors, monitors limit and pressure switches, energizes the gas valve and igniter, and runs onboard diagnostics. A failed control board produces a wide range of faults — no ignition, blower that won't start or won't stop, error codes flashing on the diagnostic LED, or a completely dead furnace. The kit includes the board and mounting hardware needed for a direct OEM replacement.

Specifications

Compatibility

Built for the ICP RGS101LTCB0AAA and shared-platform Tempstar, Heil, and Comfortmaker furnaces using this integrated control. Match the board's connector layout and part number 1183618 to your existing board before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel to reach the control board.
3. Document — Photograph every plug and wire harness on the board before disconnecting.
4. Remove — Unplug all connectors, remove the mounting screws/standoffs, and lift out the old board.
5. Install — Mount the new board and reconnect each harness to the matching plug per your photo.
6. Test — Restore power, run a full heat cycle, and confirm the diagnostic LED shows normal operation with no fault codes.

Signs You Need a Replacement

• Furnace completely dead with no diagnostic LED
• Blower or inducer runs constantly or won't start
• Error/fault codes flashing on the board LED
• Intermittent no-heat that follows no consistent pattern

Shipping & Returns

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