ICP Furnace Control Board for RGS213LFAA0AAAA — OEM Kit 1183618 | Ships Today

Overview

This genuine OEM control board kit (part number 1183618) is the integrated furnace control (IFC) for the ICP / Heil / Tempstar RGS213LFAA0AAAA. The board is the brain of the furnace — it manages the ignition sequence, sequences the inducer and blower motors, monitors safety limits and flame, and runs the onboard diagnostic LED. A failed board typically presents as a dead furnace, a furnace stuck on continuous blower, no inducer start, or a flashing fault code that points back to the control. Supplied as a complete kit for a clean, direct replacement.

Specifications

Compatibility

Direct-fit replacement control board kit for the ICP/Heil/Tempstar RGS213LFAA0AAAA furnace and Comfortmaker-family units originally equipped with OEM part 1183618. Match the board part number and connector layout 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 expose the control board.
3. Document — Photograph every wire harness and plug position before disconnecting anything.
4. Remove — Unplug each connector, release the board standoffs or screws, and lift out the old board.
5. Install — Mount the new board and reconnect every harness exactly as photographed; confirm dip-switch and jumper settings match.
6. Test — Restore power, run a full heat cycle, and verify the diagnostic LED shows a normal status code.

Signs You Need a Replacement

• Furnace is completely unresponsive on a heat call.
• Inducer or blower fails to start, or blower runs continuously.
• Diagnostic LED is dark or flashing a control/board fault code.
• Visible scorching, 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.