ICP Control Board Kit for RGS180LECA0AAAA — Furnace Integrated Control | Ships Today

Overview

This is the genuine OEM control board kit (part number 1183618) for the ICP / Tempstar / Heil RGS180LECA0AAAA gas furnace. The integrated furnace control board (IFC) is the brain of the furnace — it manages the ignition sequence, blower timing, gas valve operation, safety lockouts, and communication with the thermostat. When this board fails, the furnace may fail to ignite, short-cycle, throw error/fault codes on the diagnostic LED, or stop responding to the thermostat entirely. This kit ships as a complete board assembly ready to install.

Specifications

Compatibility

Designed for the ICP family RGS180LECA0AAAA furnace and is sold across the ICP, Tempstar, Heil, and Comfortmaker badge-engineered lines. Always confirm the part number printed on your existing board matches 1183618 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 furnace blower/control compartment service panel.
3. Document — Photograph every wire and connector position on the old board before disconnecting anything.
4. Remove — Unplug all low- and line-voltage harnesses, remove the mounting screws/standoffs, and lift out the failed board.
5. Install — Mount the new 1183618 board, then reconnect every harness exactly per your photos.
6. Test — Restore power, run a heat cycle, and confirm proper ignition, blower operation, and a clean diagnostic LED.

Signs You Need a Replacement

• Furnace will not ignite or fire on a call for heat.
• Blower runs continuously or fails to start.
• Diagnostic LED shows a hard-lockout or board fault code.
• Furnace ignores or intermittently responds to the thermostat.

Shipping & Returns

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