ICP Furnace Control Board for RGS243STEA0AAAA — OEM Kit 1183618 | Ships Today

Overview

This is the OEM integrated furnace control board kit (part number 1183618) for the ICP / Tempstar / Heil gas furnace model RGS243STEA0AAAA. The control board sequences the entire heat cycle — it powers the inducer, energizes the igniter, opens the gas valve, proves flame, and starts the blower, while running continuous diagnostics with an LED fault code. A failed board commonly causes a no-heat call response, repeated ignition lockout, or a blower that runs nonstop. This complete plug-in kit ships with the correct connectors and mounting hardware for a direct swap.

Specifications

Compatibility

Engineered as a direct OEM fit for the ICP/Tempstar/Heil RGS243STEA0AAAA gas furnace. Sold by exact model match — confirm your model number on the unit rating plate 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 blower-compartment service panel.
3. Document — Photograph every wire and connector on the existing board before disconnecting anything.
4. Remove — Unplug the low- and line-voltage harnesses, release the board mounting tabs/screws, and lift out the old board.
5. Install — Mount the new board, reconnect each harness exactly per your photo, and keep wiring clear of moving parts.
6. Test — Restore power, initiate a heat call, and confirm a full ignition cycle with no LED fault codes.

Signs You Need a Replacement

• No response to a thermostat heat call
• Repeated ignition lockout or flashing diagnostic LED
• Blower runs continuously or won't start
• Visible burns, scorch marks, or failed relays on the board

Shipping & Returns

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