ICP Furnace Control Board Kit for RGS102LTAA0AAA — OEM 1183618 | Ships Today

Overview

This genuine ICP/Tempstar/Heil furnace control board kit, OEM part 1183618, is the integrated ignition control that manages the heating sequence on the RGS102LTAA0AAA gas furnace. The board reads the thermostat call, runs the inducer and pressure switch proving, energizes the hot surface igniter, opens the gas valve, confirms flame via the sensor, and sequences the blower on and off. A failed board causes erratic or no-heat operation, blower or inducer problems, lockouts, and intermittent flame-sense faults. The kit replaces the complete board so the full ignition and safety sequence is restored to factory operation.

Specifications

Compatibility

Direct OEM replacement for the ICP RGS102LTAA0AAA furnace and shared-platform Tempstar, Heil, and Comfortmaker furnaces using this control board. Match the board layout and connector positions to your existing part before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace disconnect/breaker. Verify zero voltage with a multimeter before touching the board.
2. Access — Remove the blower/control compartment panel.
3. Document — Photograph every connector and wire location before unplugging anything.
4. Remove — Unplug the harnesses, remove the board mounting screws, and lift out the old board.
5. Install — Mount the new board, then reconnect each harness to its matching terminal per your photos.
6. Test — Restore power, run a full heat cycle, and confirm inducer, igniter, gas valve, flame proving, and blower all sequence correctly.

Signs You Need a Replacement

• Furnace won't start or locks out on a call for heat
• Blower or inducer runs erratically or not at all
• Repeated flame-sense or ignition fault codes
• Visible burn marks, corrosion, or a tripped/blown onboard fuse

Shipping & Returns

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