ICP Furnace Control Board Kit for RGS120HFBB0AAA — 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 RGS120HFBB0AAA gas furnace. The control board is the brain of the furnace — it manages the ignition sequence, sequences the inducer and blower motors, monitors safety devices (limits, pressure switches, flame sense), and communicates with the thermostat. When the board fails, the furnace may not start, may short-cycle, may run the blower continuously, or may throw flashing diagnostic fault codes. Supplied as a kit with the hardware needed for a clean swap, this board restores correct, safe sequencing and full diagnostic capability.

Specifications

Compatibility

Built for the ICP RGS120HFBB0AAA furnace and shared-chassis Tempstar, Heil, and Comfortmaker units that use this control. Confirm the exact OEM part number — control boards are platform-specific and not interchangeable across furnace generations.

Installation Guide

1. Safety First — Disconnect electrical power and verify zero voltage with a multimeter.
2. Access — Remove the furnace control/blower compartment panel.
3. Document — Photograph every wire and connector on the old board before disconnecting; note any DIP switch or jumper settings.
4. Remove — Unplug all connectors, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board, transfer DIP/jumper settings, and reconnect every harness exactly per your photos.
6. Test — Restore power, call for heat, and verify the full ignition sequence and correct diagnostic LED status.

Signs You Need a Replacement

• Furnace completely dead or no response to thermostat.
• Flashing fault/error codes pointing to the control.
• Short-cycling or blower that runs continuously.
• Inducer or igniter not sequencing correctly.

Shipping & Returns

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