ICP Furnace Control Board Kit for RGS120SEBB0AAA — OEM 1183618 | Ships Today

Overview

This genuine OEM control board kit (part number 1183618) is the integrated furnace control (IFC) brain of the ICP/Tempstar/Heil RGS120SEBB0AAA. It manages the entire heating sequence — inducer startup, igniter timing, gas valve actuation, blower control, and safety lockouts — while monitoring the pressure switch, limit switch, and flame sensor. A failed board produces erratic or dead behavior: no response to a heat call, blower running constantly, ignition sequence stalls, or repeated lockouts with no clear single-component cause. Supplied as a complete kit with the correct mounting hardware and connectors for a direct, reliable replacement.

Specifications

Compatibility

Direct OEM replacement for the RGS120SEBB0AAA and matching ICP-family furnaces that use this control board. Because ICP revises boards across production runs, verify part number 1183618 against your existing board before ordering.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter.
2. Access — Remove the blower/control compartment panel.
3. Document — Photograph every harness connector and terminal before unplugging anything.
4. Remove — Disconnect all plugs and wires, then unfasten and remove the old board.
5. Install — Mount the new board with the supplied hardware and reconnect each harness to the matching plug per your photo.
6. Test — Restore power and run a full heat cycle, confirming inducer, ignition, gas valve, and blower stage correctly.

Signs You Need a Replacement

• No response to a thermostat heat call
• Blower runs continuously or won't start
• Ignition sequence stalls or never completes
• Repeated lockouts with no single faulty component found

Shipping & Returns

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