ICP Furnace Control Board Kit for RGS243HFEA0AAAA — OEM | Ships Today

Overview

This genuine OEM integrated furnace control board kit (part 1183618) is the electronic brain of the ICP / Heil / Tempstar RGS243HFEA0AAAA gas furnace. It manages the full heating sequence — inducer operation, ignition timing, gas valve control, blower on/off delays, and safety monitoring of limits, pressure switches, and flame sensing. When the board fails, the furnace may show no response to a thermostat call, fail to ignite, run the blower continuously, or flash diagnostic fault codes on the onboard LED. Supplied as a complete kit for a straightforward, reliable replacement that restores full furnace operation and safety logic.

Specifications

Compatibility

Engineered for the ICP/Heil/Tempstar RGS243HFEA0AAAA and related ICP-family gas furnaces using control kit 1183618. Confirm the OEM part number on your original board and match the connector layout 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 control-compartment service panel.
3. Document — Photograph every harness connector and terminal position on the old board.
4. Remove — Unplug the connectors, remove the mounting screws, and lift out the failed board.
5. Install — Mount the new board and reconnect each harness exactly per your photo, confirming firm seating.
6. Test — Restore power and run a full heating cycle, watching the diagnostic LED for normal operation.

Signs You Need a Replacement

• No response from the furnace on a thermostat call
• Blower runs continuously or won't start
• Repeated ignition lockouts with board fault codes
• Visible burn marks, corrosion, or a dead diagnostic LED

Shipping & Returns

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