ICP Control Board for RGS243HSEA0AAAA – OEM Furnace Control Kit | Ships Today

Overview

This is the OEM control board kit (part 1183618) for the ICP/Tempstar/Heil RGS243HSEA0AAAA gas-electric package unit. The integrated furnace control board is the brain of the system: it manages the ignition sequence, monitors flame sense and safety limits, sequences the inducer and blower, and coordinates the 24V thermostat calls for heating and cooling. When the board fails you may see no ignition, erratic blower behavior, repeated lockouts, or a completely dead unit. This complete kit ships with the mounting hardware needed for a direct OEM replacement.

Specifications

Compatibility

Designed for the ICP RGS243HSEA0AAAA and used across related Tempstar, Heil, Comfortmaker, and Arcoaire gas-electric package units sharing this control platform. Match the OEM part number and connector layout to your existing board before ordering.

Installation Guide

1. Safety First – Disconnect power and shut off the gas; verify zero voltage with a multimeter.
2. Access – Remove the control/blower compartment panel.
3. Document – Photograph every plug, harness, and terminal on the old board before disconnecting.
4. Remove – Unplug each connector, release the standoffs or mounting screws, and lift the board out.
5. Install – Mount the new board on the supplied standoffs and reconnect each harness to the matching connector per your photo.
6. Test – Restore gas and power, then run a full heat and cool cycle to confirm proper ignition, blower, and changeover operation.

Signs You Need a Replacement

• No ignition or repeated safety lockouts
• Blower runs continuously or fails to start
• No response to thermostat calls or a completely dead unit
• Visible burnt traces, scorch marks, or a blown fuse on the board

Shipping & Returns

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