ICP Furnace Control Board for RGS243SRFA0AAAA — OEM Kit 1183618 | Ships Today

Overview

This is the genuine OEM integrated furnace control board (kit part number 1183618) for the ICP / Tempstar / Heil RGS243SRFA0AAAA gas furnace. The control board manages the entire heating sequence — it controls ignition timing, sequences the inducer and blower motors, monitors flame sense and safety limits, and reports faults via diagnostic LEDs. A failed board commonly results in a furnace that will not ignite, short-cycles, blows cold air, or clears its symptoms only after a power reset.

Specifications

Compatibility

Engineered as a direct OEM replacement for the ICP RGS243SRFA0AAAA gas furnace and closely related RGS-series models built on the same control platform. Always confirm your existing board part number before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the furnace front service panel and locate the control board in the burner compartment.
3. Document — Photograph every wire and connector position before disconnecting anything.
4. Remove — Unplug all low- and line-voltage connectors, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board, reconnect every connector exactly per your photo, and confirm the ground.
6. Test — Restore power and run a full heat cycle; confirm ignition, blower, and a steady status LED.

Signs You Need a Replacement

• Furnace will not ignite or start a heat cycle
• Flashing diagnostic LED fault codes on the board
• Blower or inducer runs erratically or not at all
• Intermittent no-heat calls that clear after a power reset

Shipping & Returns

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