ICP Furnace Control Board for RGS240SEAA0AAAA — OEM Kit 1183618 | Ships Today

Overview

This is the genuine OEM integrated furnace control board (kit) for the ICP/Heil/Tempstar RGS240SEAA0AAAA gas furnace, OEM part number 1183618. The control board is the brain of the furnace — it manages the ignition sequence, monitors safety limits and flame sense, sequences the inducer and blower motors, and controls the gas valve timing. When this board fails the furnace may fail to ignite, short-cycle, lock out on safety faults, or not run the blower at all. A failed board often shows an erratic or absent diagnostic LED flash code.

Specifications

Compatibility

Engineered as a direct OEM fit for the ICP/Heil/Tempstar RGS240SEAA0AAAA furnace and other models in the RGS240 series that specify control board 1183618. Always confirm the number printed on your existing board 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 on the existing board before disconnecting.
4. Remove — Unplug the harness connectors, remove the mounting screws/standoffs, and lift out the old board.
5. Install — Mount the new board on the same standoffs and reconnect each harness exactly per your photo.
6. Test — Restore power, initiate a heat call, and confirm a full ignition cycle and correct blower operation.

Signs You Need a Replacement

• Furnace will not start or has no response on a heat call
• Blower or inducer does not run, or runs continuously
• Repeated safety lockouts or erratic diagnostic LED flash codes
• Visible burn marks, swollen capacitors, or cracked traces on the board

Shipping & Returns

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