ICP Furnace Control Board Kit for RGS180LSCA0AAAA — OEM 1183618 | Ships Today

Overview

This genuine OEM control board kit, part number 1183618, is the integrated furnace control (IFC) for the ICP / Tempstar / Heil RGS180LSCA0AAAA gas furnace. The control board manages the ignition sequence, gas valve, blower and inducer timing, safety lockouts, and diagnostic fault codes. A failed board is one of the most common no-heat causes — symptoms include a dead furnace with no LED, a blower or inducer that will not start, erratic cycling, or a flashing diagnostic code that points to the control itself.

Specifications

Compatibility

Direct OEM fit for the ICP / Tempstar / Heil model RGS180LSCA0AAAA gas furnace. This is a kit, so confirm the included mounting hardware/harness matches your unit, and verify part number 1183618 on the furnace parts breakdown before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker and verify zero voltage with a multimeter.
2. Access — Remove the furnace blower/control service panel.
3. Document — Photograph every wire and connector on the old board before disconnecting.
4. Remove — Unplug all harnesses, release the board standoffs/screws, and remove the old control.
5. Install — Mount the new 1183618 board on the kit standoffs and reconnect every harness exactly per your photo.
6. Test — Restore power, run a full heat cycle, and confirm correct ignition, blower, and a clear (no-fault) diagnostic LED.

Signs You Need a Replacement

• Furnace completely dead with no control LED
• Inducer or blower will not energize on a call for heat
• Persistent hard-lockout or a diagnostic code pointing to the control
• Burnt traces, scorched relay, or corrosion visible on the board

Shipping & Returns

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