ICP Furnace Control Board Kit for RGS090SEAA0AAA – Integrated Ignition Control | Ships Today

Overview

This OEM control board kit (part number 1183618) is the brain of your ICP RGS090SEAA0AAA gas furnace. It manages the entire heating sequence — inducer startup, pressure-switch proving, igniter warm-up, gas valve timing, flame sensing, and blower control — and includes built-in safety lockouts. A failed board is a frequent cause of no-heat calls. Common symptoms include a completely dead furnace, an ignition sequence that never starts, the blower running continuously or not at all, error/diagnostic LED fault codes, or visible burn marks, corrosion, or failed relays on the board itself.

Specifications

Compatibility

Direct OEM replacement for the ICP / Tempstar / Heil RGS090SEAA0AAA gas furnace and compatible ICP-family units that use this control board kit. The kit format includes the necessary mounting and connection components for a clean swap.

Installation Guide

1. Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access – Remove the control/blower compartment service panel.
3. Document – Photograph every plug and terminal on the existing board before disconnecting.
4. Remove – Unplug all connectors, remove the mounting screws, and lift out the old board.
5. Install – Mount the new board and transfer each connector to the matching terminal per your photo.
6. Test – Restore power and confirm a complete, fault-free ignition and heating cycle.

Signs You Need a Replacement

• Furnace is completely unresponsive on a heat call
• Ignition sequence never begins or stalls mid-cycle
• Blower runs constantly or refuses to start
• Diagnostic LED shows a control or hardware fault code

Shipping & Returns

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