ICP Furnace Control Board for RGS240LTEA0AAAA — OEM Kit 1183618 | Ships Today

Overview

This OEM integrated furnace control board (kit part number 1183618) is the brain of the ICP/Tempstar/Heil RGS240LTEA0AAAA gas furnace. It manages the ignition sequence, blower and inducer timing, gas valve actuation, flame sensing, and built-in safety lockouts. When this board fails, the furnace may fail to ignite, short-cycle, run the blower continuously, throw error/flash codes, or go completely dead. Because it coordinates every safety device on the appliance, a failed board should always be replaced with a genuine OEM unit rather than a generic substitute.

Specifications

Compatibility

Engineered as a direct-fit replacement for the ICP family RGS240LTEA0AAAA furnace and closely related Tempstar/Heil/Comfortmaker models sharing this control platform. Always confirm your existing board part number before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel.
3. Document — Photograph every wire and connector position before disconnecting.
4. Remove — Unplug the molex harnesses and spade terminals, then unscrew the old board from its standoffs.
5. Install — Mount the new board and reconnect each harness exactly per your photos.
6. Test — Restore power and run a full heat cycle; confirm ignition, blower, and no fault codes.

Signs You Need a Replacement

• Furnace is completely unresponsive with no diagnostic LED
• Repeated ignition lockouts or erratic flash/error codes
• Blower or inducer motor runs constantly or not at all
• Visible burn marks, corrosion, or cracked relays on the board

Shipping & Returns

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