ICP Control Board Kit for RGS243HFAA0AAAA — OEM Furnace Board | Ships Today

Overview

This is the OEM control board kit (part 1183618) for the ICP / Tempstar / Heil RGS243HFAA0AAAA gas furnace. The integrated furnace control board is the brain of the system — it sequences the inducer, igniter, gas valve, and blower, monitors safety limits and flame sense, and times each heating cycle. When the board fails, you typically see no response on a call for heat, erratic blower behavior, repeated lockouts, or fault codes flashing on the diagnostic LED. This kit is the complete factory replacement assembly for a direct, code-correct swap. Specs: OEM integrated ignition control board kit for the RGS243 platform.

Specifications

Compatibility

Factory replacement for the ICP / Tempstar / Heil RGS243HFAA0AAAA gas furnace and related RGS243 models that use the same integrated control board.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter; shut off gas before servicing.
2. Access — Remove the furnace control/blower service panel.
3. Document — Photograph every connector and wire position on the old board before unplugging anything.
4. Remove — Unplug the harnesses, release the board mounting tabs or screws, and lift out the old board.
5. Install — Mount the new board and transfer each connector to the matching terminal exactly per your photos.
6. Test — Restore power and gas, run a full heat cycle, and verify proper sequencing with no fault codes.

Signs You Need a Replacement

• No response from the furnace on a call for heat
• Fault or error codes flashing on the board's diagnostic LED
• Blower or inducer running erratically or not at all
• Repeated lockouts with all other components testing good

Shipping & Returns

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