ICP Integrated Furnace Control Board Kit for RGX036KMCA0AAA | Ships Today

Overview

This OEM control board kit (ICP part 1183618) is the brain of your RGX036KMCA0AAA gas furnace. The integrated furnace control sequences ignition, monitors the flame sensor and pressure switch safeties, energizes the igniter and gas valve, and times the blower on and off delays. When the board fails, the furnace may lock out, fail to ignite, run the blower continuously, or throw erratic LED fault codes. The kit includes the board and the mounting hardware needed for a clean OEM replacement, restoring correct, code-compliant operation of the entire heating sequence.

Specifications

Compatibility

Direct OEM fit for the ICP / Tempstar / Heil RGX036KMCA0AAA gas furnace and related RGX-series models using this control board kit. Match your existing board's part number and connector layout before installing.

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/blower compartment service panel.
3. Document — Photograph every wire harness and plug position on the old board before disconnecting.
4. Remove — Unplug each connector, release the board standoffs, and lift out the failed board.
5. Install — Mount the new board on the standoffs and reconnect every harness exactly as photographed; set any dip switches or jumpers to match the original.
6. Test — Restore power and run a full heat cycle, confirming ignition, flame proof, and proper blower timing with no fault codes.

Signs You Need a Replacement

• Furnace will not start or repeatedly locks out
• Blower runs constantly or never starts
• Erratic or rapidly flashing LED fault codes
• Igniter or gas valve fails to energize in sequence

Shipping & Returns

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