ICP Furnace Control Board Kit for RGX048KMCA0AAA — OEM Board | Ships Today

Overview

This OEM control board kit (part 1183618) for the ICP Tempstar Heil RGX048KMCA0AAA is the integrated furnace control that orchestrates the entire heating sequence. It manages the inducer motor, hot surface igniter, gas valve timing, blower on/off delays, and continuously monitors safety circuits such as the pressure switch, flame sensor, and limit switches. The kit includes the board and required mounting hardware for a complete replacement. When the control board fails, the furnace may not respond to thermostat calls, run the blower constantly, fail ignition, or flash diagnostic fault codes on the board LED. Heat, surges, and aging relays are common causes of board failure.

Specifications

Compatibility

Built for the ICP Tempstar Heil RGX048KMCA0AAA and compatible ICP-family gas furnaces using this integrated control. Confirm the board part number and connector layout against your existing board 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 control compartment service panel.
3. Document — Photograph every wire harness and connector position on the old board.
4. Remove — Unplug each connector, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board with the included hardware and reconnect every harness exactly per your photos.
6. Test — Restore power, run a heat cycle, and confirm normal ignition, blower timing, and no fault codes.

Signs You Need a Replacement

• Furnace does not respond to thermostat calls
• Blower runs continuously or not at all
• Repeated ignition or sequencing failures
• Diagnostic fault LED flashing a board error code

Shipping & Returns

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