ICP Furnace Control Board Kit for RGS090SRCA0AAA — OEM Ignition Control | Ships Today

Overview

This OEM control board kit (part number 1183618) is the integrated furnace control (IFC) — the brain of the ICP RGS090SRCA0AAA gas furnace. It manages the entire heating sequence: it powers the inducer, proves the pressure switch, energizes the hot surface igniter, opens the gas valve, monitors the flame sensor, and controls the blower motor timing. The board also runs self-diagnostics and flashes fault codes via its onboard LED. Boards fail from voltage surges, overheating, corroded relays, or burnt traces — symptoms include a completely dead furnace, no inducer start, no igniter sequence, or erratic blower behavior.

Specifications

Compatibility

Direct OEM replacement for the ICP RGS090SRCA0AAA furnace and shared across many Tempstar, Heil, and Comfortmaker furnaces using this integrated control. Confirm the board part number printed on your existing board before ordering.

Installation Guide

1. Safety First — Disconnect electrical power and shut off the gas; verify zero voltage with a multimeter.
2. Access — Remove the furnace control-compartment door to expose the board.
3. Document — Photograph every wire harness and terminal before disconnecting — this is the most critical step.
4. Remove — Unplug all connectors, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board with the supplied hardware and reconnect each harness exactly per your photo.
6. Test — Restore gas and power, call for heat, and watch the full sequence complete with a steady LED status.

Signs You Need a Replacement

• Furnace is completely unresponsive with no LED activity
• Inducer or igniter sequence never starts on a heat call
• Blower runs constantly or won't run at all
• Visible burnt relays, scorched traces, or a hard-fault LED code

Shipping & Returns

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