ICP Furnace Control Board Kit for RGS180HRCA0AAAA — OEM Ignition Control | Ships Today

Overview

This OEM control board kit, part 1183618, is the integrated furnace control (IFC) for the ICP / Tempstar / Heil RGS180HRCA0AAAA gas furnace. The control board is the brain of the furnace — it sequences the inducer, igniter, gas valve, and blower, monitors safety switches, and manages diagnostics. Supplied as a complete kit for a direct OEM replacement. When the board fails, symptoms include a completely dead furnace, no response to thermostat calls, blower or inducer running continuously, error/fault LED codes, or intermittent operation and random lockouts. Always record the existing fault code and verify supply voltage before replacing the board.

Specifications

Compatibility

Direct-fit replacement for the ICP / Tempstar / Heil RGS180HRCA0AAAA and related RGS-series furnaces specifying OEM control board kit 1183618.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the furnace control compartment panel.
3. Document — Photograph every harness connector and wire location before disconnecting.
4. Remove — Unplug all connectors and remove the mounting screws holding the old board.
5. Install — Mount the new board and reconnect each harness to its matching plug per your photos.
6. Test — Restore power, run a full heat cycle, and confirm no fault codes on the diagnostic LED.

Signs You Need a Replacement

• Furnace completely dead or unresponsive to the thermostat
• Blower or inducer motor runs continuously
• Fault/error LED flash codes on the board
• Random lockouts or intermittent no-heat operation

Shipping & Returns

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